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Finding the Fourth Proportional to 316,774.71, 475,061.40 and 103,493.97

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Solution

The fourth proportional to 316,774.71, 475,061.40 and 103,493.97 is: 155,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,774.71 : 475,061.40 = 103,493.97 : x
  2. Step 2: Convert to fraction form
    316,774.71/475,061.40 = 103,493.97/x
  3. Step 3: Cross multiply
    316,774.71x = 475,061.40 × 103,493.97
  4. Step 4: Simplify right side
    316,774.71x = 49,165,990,279.76
  5. Step 5: Solve for x
    x = 49,165,990,279.76/316,774.71
  6. Step 6: Final answer
    x = 155,208.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.