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Finding the Fourth Proportional to 243,577.46, 336,152.58 and 136,147.88

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Solution

The fourth proportional to 243,577.46, 336,152.58 and 136,147.88 is: 187,892.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,577.46 : 336,152.58 = 136,147.88 : x
  2. Step 2: Convert to fraction form
    243,577.46/336,152.58 = 136,147.88/x
  3. Step 3: Cross multiply
    243,577.46x = 336,152.58 × 136,147.88
  4. Step 4: Simplify right side
    243,577.46x = 45,766,461,123.53
  5. Step 5: Solve for x
    x = 45,766,461,123.53/243,577.46
  6. Step 6: Final answer
    x = 187,892.84

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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.