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Finding the Fourth Proportional to 243,491.70, 336,012.27 and 136,062.61

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Solution

The fourth proportional to 243,491.70, 336,012.27 and 136,062.61 is: 187,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,491.70 : 336,012.27 = 136,062.61 : x
  2. Step 2: Convert to fraction form
    243,491.70/336,012.27 = 136,062.61/x
  3. Step 3: Cross multiply
    243,491.70x = 336,012.27 × 136,062.61
  4. Step 4: Simplify right side
    243,491.70x = 45,718,707,191.02
  5. Step 5: Solve for x
    x = 45,718,707,191.02/243,491.70
  6. Step 6: Final answer
    x = 187,762.90

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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.