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Finding the Fourth Proportional to 366,987.30, 550,480.95 and 100,788.90

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Solution

The fourth proportional to 366,987.30, 550,480.95 and 100,788.90 is: 151,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.30 : 550,480.95 = 100,788.90 : x
  2. Step 2: Convert to fraction form
    366,987.30/550,480.95 = 100,788.90/x
  3. Step 3: Cross multiply
    366,987.30x = 550,480.95 × 100,788.90
  4. Step 4: Simplify right side
    366,987.30x = 55,482,369,421.46
  5. Step 5: Solve for x
    x = 55,482,369,421.46/366,987.30
  6. Step 6: Final answer
    x = 151,183.35

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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.