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Finding the Fourth Proportional to 315,456.28, 435,354.50 and 179,495.96

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Solution

The fourth proportional to 315,456.28, 435,354.50 and 179,495.96 is: 247,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,456.28 : 435,354.50 = 179,495.96 : x
  2. Step 2: Convert to fraction form
    315,456.28/435,354.50 = 179,495.96/x
  3. Step 3: Cross multiply
    315,456.28x = 435,354.50 × 179,495.96
  4. Step 4: Simplify right side
    315,456.28x = 78,144,372,189.79
  5. Step 5: Solve for x
    x = 78,144,372,189.79/315,456.28
  6. Step 6: Final answer
    x = 247,718.55

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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.