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Finding the Fourth Proportional to 662,987.10, 994,480.65 and 242,208.30

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Solution

The fourth proportional to 662,987.10, 994,480.65 and 242,208.30 is: 363,312.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,987.10 : 994,480.65 = 242,208.30 : x
  2. Step 2: Convert to fraction form
    662,987.10/994,480.65 = 242,208.30/x
  3. Step 3: Cross multiply
    662,987.10x = 994,480.65 × 242,208.30
  4. Step 4: Simplify right side
    662,987.10x = 240,871,467,619.40
  5. Step 5: Solve for x
    x = 240,871,467,619.40/662,987.10
  6. Step 6: Final answer
    x = 363,312.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.