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Finding the Fourth Proportional to 379,358.59, 523,508.72 and 207,272.87

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Solution

The fourth proportional to 379,358.59, 523,508.72 and 207,272.87 is: 286,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,358.59 : 523,508.72 = 207,272.87 : x
  2. Step 2: Convert to fraction form
    379,358.59/523,508.72 = 207,272.87/x
  3. Step 3: Cross multiply
    379,358.59x = 523,508.72 × 207,272.87
  4. Step 4: Simplify right side
    379,358.59x = 108,509,157,284.32
  5. Step 5: Solve for x
    x = 108,509,157,284.32/379,358.59
  6. Step 6: Final answer
    x = 286,033.22

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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.