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Finding the Fourth Proportional to 243,492.76, 335,998.15 and 136,047.88

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Solution

The fourth proportional to 243,492.76, 335,998.15 and 136,047.88 is: 187,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,492.76 : 335,998.15 = 136,047.88 : x
  2. Step 2: Convert to fraction form
    243,492.76/335,998.15 = 136,047.88/x
  3. Step 3: Cross multiply
    243,492.76x = 335,998.15 × 136,047.88
  4. Step 4: Simplify right side
    243,492.76x = 45,711,835,991.42
  5. Step 5: Solve for x
    x = 45,711,835,991.42/243,492.76
  6. Step 6: Final answer
    x = 187,733.86

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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.