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Finding the Fourth Proportional to 445,143.34, 615,136.08 and 337,513.78

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Solution

The fourth proportional to 445,143.34, 615,136.08 and 337,513.78 is: 466,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,143.34 : 615,136.08 = 337,513.78 : x
  2. Step 2: Convert to fraction form
    445,143.34/615,136.08 = 337,513.78/x
  3. Step 3: Cross multiply
    445,143.34x = 615,136.08 × 337,513.78
  4. Step 4: Simplify right side
    445,143.34x = 207,616,903,575.18
  5. Step 5: Solve for x
    x = 207,616,903,575.18/445,143.34
  6. Step 6: Final answer
    x = 466,404.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.