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Finding the Fourth Proportional to 234,191.20, 351,285.36 and 76,419.76

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Solution

The fourth proportional to 234,191.20, 351,285.36 and 76,419.76 is: 114,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,191.20 : 351,285.36 = 76,419.76 : x
  2. Step 2: Convert to fraction form
    234,191.20/351,285.36 = 76,419.76/x
  3. Step 3: Cross multiply
    234,191.20x = 351,285.36 × 76,419.76
  4. Step 4: Simplify right side
    234,191.20x = 26,845,142,902.71
  5. Step 5: Solve for x
    x = 26,845,142,902.71/234,191.20
  6. Step 6: Final answer
    x = 114,629.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.