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Finding the Fourth Proportional to 461,358.10, 636,673.30 and 257,396.89

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Solution

The fourth proportional to 461,358.10, 636,673.30 and 257,396.89 is: 355,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,358.10 : 636,673.30 = 257,396.89 : x
  2. Step 2: Convert to fraction form
    461,358.10/636,673.30 = 257,396.89/x
  3. Step 3: Cross multiply
    461,358.10x = 636,673.30 × 257,396.89
  4. Step 4: Simplify right side
    461,358.10x = 163,877,722,895.69
  5. Step 5: Solve for x
    x = 163,877,722,895.69/461,358.10
  6. Step 6: Final answer
    x = 355,207.21

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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.