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Finding the Fourth Proportional to 379,537.79, 524,192.51 and 258,468.71

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Solution

The fourth proportional to 379,537.79, 524,192.51 and 258,468.71 is: 356,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,537.79 : 524,192.51 = 258,468.71 : x
  2. Step 2: Convert to fraction form
    379,537.79/524,192.51 = 258,468.71/x
  3. Step 3: Cross multiply
    379,537.79x = 524,192.51 × 258,468.71
  4. Step 4: Simplify right side
    379,537.79x = 135,487,359,876.57
  5. Step 5: Solve for x
    x = 135,487,359,876.57/379,537.79
  6. Step 6: Final answer
    x = 356,979.90

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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.