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Finding the Fourth Proportional to 461,359.10, 636,674.68 and 257,397.89

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Solution

The fourth proportional to 461,359.10, 636,674.68 and 257,397.89 is: 355,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,359.10 : 636,674.68 = 257,397.89 : x
  2. Step 2: Convert to fraction form
    461,359.10/636,674.68 = 257,397.89/x
  3. Step 3: Cross multiply
    461,359.10x = 636,674.68 × 257,397.89
  4. Step 4: Simplify right side
    461,359.10x = 163,878,714,778.06
  5. Step 5: Solve for x
    x = 163,878,714,778.06/461,359.10
  6. Step 6: Final answer
    x = 355,208.59

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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.