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Finding the Fourth Proportional to 243,530.82, 336,082.92 and 136,100.86

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Solution

The fourth proportional to 243,530.82, 336,082.92 and 136,100.86 is: 187,824.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,530.82 : 336,082.92 = 136,100.86 : x
  2. Step 2: Convert to fraction form
    243,530.82/336,082.92 = 136,100.86/x
  3. Step 3: Cross multiply
    243,530.82x = 336,082.92 × 136,100.86
  4. Step 4: Simplify right side
    243,530.82x = 45,741,173,228.14
  5. Step 5: Solve for x
    x = 45,741,173,228.14/243,530.82
  6. Step 6: Final answer
    x = 187,824.98

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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.