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Finding the Fourth Proportional to 636,008.64, 954,057.12 and 215,142.24

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Solution

The fourth proportional to 636,008.64, 954,057.12 and 215,142.24 is: 322,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,008.64 : 954,057.12 = 215,142.24 : x
  2. Step 2: Convert to fraction form
    636,008.64/954,057.12 = 215,142.24/x
  3. Step 3: Cross multiply
    636,008.64x = 954,057.12 × 215,142.24
  4. Step 4: Simplify right side
    636,008.64x = 205,257,985,884.75
  5. Step 5: Solve for x
    x = 205,257,985,884.75/636,008.64
  6. Step 6: Final answer
    x = 322,728.30

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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.