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Finding the Fourth Proportional to 379,335.90, 523,468.05 and 207,259.83

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Solution

The fourth proportional to 379,335.90, 523,468.05 and 207,259.83 is: 286,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,335.90 : 523,468.05 = 207,259.83 : x
  2. Step 2: Convert to fraction form
    379,335.90/523,468.05 = 207,259.83/x
  3. Step 3: Cross multiply
    379,335.90x = 523,468.05 × 207,259.83
  4. Step 4: Simplify right side
    379,335.90x = 108,493,899,053.43
  5. Step 5: Solve for x
    x = 108,493,899,053.43/379,335.90
  6. Step 6: Final answer
    x = 286,010.10

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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.