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Finding the Fourth Proportional to 379,344.52, 523,489.33 and 207,258.79

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Solution

The fourth proportional to 379,344.52, 523,489.33 and 207,258.79 is: 286,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,344.52 : 523,489.33 = 207,258.79 : x
  2. Step 2: Convert to fraction form
    379,344.52/523,489.33 = 207,258.79/x
  3. Step 3: Cross multiply
    379,344.52x = 523,489.33 × 207,258.79
  4. Step 4: Simplify right side
    379,344.52x = 108,497,765,113.71
  5. Step 5: Solve for x
    x = 108,497,765,113.71/379,344.52
  6. Step 6: Final answer
    x = 286,013.79

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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.