Home / 315,045.14-434,773.20-179,084.78

Finding the Fourth Proportional to 315,045.14, 434,773.20 and 179,084.78

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Solution

The fourth proportional to 315,045.14, 434,773.20 and 179,084.78 is: 247,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,045.14 : 434,773.20 = 179,084.78 : x
  2. Step 2: Convert to fraction form
    315,045.14/434,773.20 = 179,084.78/x
  3. Step 3: Cross multiply
    315,045.14x = 434,773.20 × 179,084.78
  4. Step 4: Simplify right side
    315,045.14x = 77,861,262,871.90
  5. Step 5: Solve for x
    x = 77,861,262,871.90/315,045.14
  6. Step 6: Final answer
    x = 247,143.20

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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.