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Finding the Fourth Proportional to 461,358.60, 636,673.99 and 257,397.39

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Solution

The fourth proportional to 461,358.60, 636,673.99 and 257,397.39 is: 355,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,358.60 : 636,673.99 = 257,397.39 : x
  2. Step 2: Convert to fraction form
    461,358.60/636,673.99 = 257,397.39/x
  3. Step 3: Cross multiply
    461,358.60x = 636,673.99 × 257,397.39
  4. Step 4: Simplify right side
    461,358.60x = 163,878,218,836.53
  5. Step 5: Solve for x
    x = 163,878,218,836.53/461,358.60
  6. Step 6: Final answer
    x = 355,207.90

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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.