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Finding the Fourth Proportional to 663,090.20, 994,635.30 and 164,454.20

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Solution

The fourth proportional to 663,090.20, 994,635.30 and 164,454.20 is: 246,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,090.20 : 994,635.30 = 164,454.20 : x
  2. Step 2: Convert to fraction form
    663,090.20/994,635.30 = 164,454.20/x
  3. Step 3: Cross multiply
    663,090.20x = 994,635.30 × 164,454.20
  4. Step 4: Simplify right side
    663,090.20x = 163,571,952,553.26
  5. Step 5: Solve for x
    x = 163,571,952,553.26/663,090.20
  6. Step 6: Final answer
    x = 246,681.30

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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.