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Finding the Fourth Proportional to 343,761.48, 474,478.05 and 234,909.90

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Solution

The fourth proportional to 343,761.48, 474,478.05 and 234,909.90 is: 324,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,761.48 : 474,478.05 = 234,909.90 : x
  2. Step 2: Convert to fraction form
    343,761.48/474,478.05 = 234,909.90/x
  3. Step 3: Cross multiply
    343,761.48x = 474,478.05 × 234,909.90
  4. Step 4: Simplify right side
    343,761.48x = 111,459,591,277.70
  5. Step 5: Solve for x
    x = 111,459,591,277.70/343,761.48
  6. Step 6: Final answer
    x = 324,235.26

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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.