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Finding the Fourth Proportional to 242,311.92, 334,385.88 and 134,881.20

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Solution

The fourth proportional to 242,311.92, 334,385.88 and 134,881.20 is: 186,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,311.92 : 334,385.88 = 134,881.20 : x
  2. Step 2: Convert to fraction form
    242,311.92/334,385.88 = 134,881.20/x
  3. Step 3: Cross multiply
    242,311.92x = 334,385.88 × 134,881.20
  4. Step 4: Simplify right side
    242,311.92x = 45,102,368,757.46
  5. Step 5: Solve for x
    x = 45,102,368,757.46/242,311.92
  6. Step 6: Final answer
    x = 186,133.51

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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.