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Finding the Fourth Proportional to 234,402.75, 323,477.34 and 126,972.78

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Solution

The fourth proportional to 234,402.75, 323,477.34 and 126,972.78 is: 175,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,402.75 : 323,477.34 = 126,972.78 : x
  2. Step 2: Convert to fraction form
    234,402.75/323,477.34 = 126,972.78/x
  3. Step 3: Cross multiply
    234,402.75x = 323,477.34 × 126,972.78
  4. Step 4: Simplify right side
    234,402.75x = 41,072,817,126.81
  5. Step 5: Solve for x
    x = 41,072,817,126.81/234,402.75
  6. Step 6: Final answer
    x = 175,223.27

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1.5x scale

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.