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Finding the Fourth Proportional to 243,489.95, 336,009.68 and 136,060.86

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Solution

The fourth proportional to 243,489.95, 336,009.68 and 136,060.86 is: 187,760.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.95 : 336,009.68 = 136,060.86 : x
  2. Step 2: Convert to fraction form
    243,489.95/336,009.68 = 136,060.86/x
  3. Step 3: Cross multiply
    243,489.95x = 336,009.68 × 136,060.86
  4. Step 4: Simplify right side
    243,489.95x = 45,717,766,869.15
  5. Step 5: Solve for x
    x = 45,717,766,869.15/243,489.95
  6. Step 6: Final answer
    x = 187,760.39

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1.5x scale

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.