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Finding the Fourth Proportional to 243,490.82, 336,010.88 and 136,061.74

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Solution

The fourth proportional to 243,490.82, 336,010.88 and 136,061.74 is: 187,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,490.82 : 336,010.88 = 136,061.74 : x
  2. Step 2: Convert to fraction form
    243,490.82/336,010.88 = 136,061.74/x
  3. Step 3: Cross multiply
    243,490.82x = 336,010.88 × 136,061.74
  4. Step 4: Simplify right side
    243,490.82x = 45,718,224,491.86
  5. Step 5: Solve for x
    x = 45,718,224,491.86/243,490.82
  6. Step 6: Final answer
    x = 187,761.59

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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.