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Finding the Fourth Proportional to 508,162.97, 701,260.12 and 278,715.58

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Solution

The fourth proportional to 508,162.97, 701,260.12 and 278,715.58 is: 384,624.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,162.97 : 701,260.12 = 278,715.58 : x
  2. Step 2: Convert to fraction form
    508,162.97/701,260.12 = 278,715.58/x
  3. Step 3: Cross multiply
    508,162.97x = 701,260.12 × 278,715.58
  4. Step 4: Simplify right side
    508,162.97x = 195,452,121,076.67
  5. Step 5: Solve for x
    x = 195,452,121,076.67/508,162.97
  6. Step 6: Final answer
    x = 384,624.88

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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.