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Finding the Fourth Proportional to 272,132.83, 408,145.93 and 258,630.53

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Solution

The fourth proportional to 272,132.83, 408,145.93 and 258,630.53 is: 387,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,132.83 : 408,145.93 = 258,630.53 : x
  2. Step 2: Convert to fraction form
    272,132.83/408,145.93 = 258,630.53/x
  3. Step 3: Cross multiply
    272,132.83x = 408,145.93 × 258,630.53
  4. Step 4: Simplify right side
    272,132.83x = 105,558,998,193.24
  5. Step 5: Solve for x
    x = 105,558,998,193.24/272,132.83
  6. Step 6: Final answer
    x = 387,895.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.