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Finding the Fourth Proportional to 242,379.91, 334,490.15 and 134,957.20

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Solution

The fourth proportional to 242,379.91, 334,490.15 and 134,957.20 is: 186,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,379.91 : 334,490.15 = 134,957.20 : x
  2. Step 2: Convert to fraction form
    242,379.91/334,490.15 = 134,957.20/x
  3. Step 3: Cross multiply
    242,379.91x = 334,490.15 × 134,957.20
  4. Step 4: Simplify right side
    242,379.91x = 45,141,852,560.57
  5. Step 5: Solve for x
    x = 45,141,852,560.57/242,379.91
  6. Step 6: Final answer
    x = 186,244.20

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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.