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Finding the Fourth Proportional to 461,308.95, 636,668.78 and 270,398.79

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Solution

The fourth proportional to 461,308.95, 636,668.78 and 270,398.79 is: 373,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,308.95 : 636,668.78 = 270,398.79 : x
  2. Step 2: Convert to fraction form
    461,308.95/636,668.78 = 270,398.79/x
  3. Step 3: Cross multiply
    461,308.95x = 636,668.78 × 270,398.79
  4. Step 4: Simplify right side
    461,308.95x = 172,154,466,390.78
  5. Step 5: Solve for x
    x = 172,154,466,390.78/461,308.95
  6. Step 6: Final answer
    x = 373,186.92

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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.