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Finding the Fourth Proportional to 402,369.48, 555,061.68 and 273,314.61

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Solution

The fourth proportional to 402,369.48, 555,061.68 and 273,314.61 is: 377,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,369.48 : 555,061.68 = 273,314.61 : x
  2. Step 2: Convert to fraction form
    402,369.48/555,061.68 = 273,314.61/x
  3. Step 3: Cross multiply
    402,369.48x = 555,061.68 × 273,314.61
  4. Step 4: Simplify right side
    402,369.48x = 151,706,466,595.15
  5. Step 5: Solve for x
    x = 151,706,466,595.15/402,369.48
  6. Step 6: Final answer
    x = 377,032.74

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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.