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Finding the Fourth Proportional to 234,874.90, 324,126.39 and 139,460.14

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Solution

The fourth proportional to 234,874.90, 324,126.39 and 139,460.14 is: 192,454.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,874.90 : 324,126.39 = 139,460.14 : x
  2. Step 2: Convert to fraction form
    234,874.90/324,126.39 = 139,460.14/x
  3. Step 3: Cross multiply
    234,874.90x = 324,126.39 × 139,460.14
  4. Step 4: Simplify right side
    234,874.90x = 45,202,711,727.09
  5. Step 5: Solve for x
    x = 45,202,711,727.09/234,874.90
  6. Step 6: Final answer
    x = 192,454.42

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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.