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Finding the Fourth Proportional to 243,512.63, 336,054.66 and 136,082.97

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Solution

The fourth proportional to 243,512.63, 336,054.66 and 136,082.97 is: 187,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,512.63 : 336,054.66 = 136,082.97 : x
  2. Step 2: Convert to fraction form
    243,512.63/336,054.66 = 136,082.97/x
  3. Step 3: Cross multiply
    243,512.63x = 336,054.66 × 136,082.97
  4. Step 4: Simplify right side
    243,512.63x = 45,731,316,215.14
  5. Step 5: Solve for x
    x = 45,731,316,215.14/243,512.63
  6. Step 6: Final answer
    x = 187,798.54

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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.