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Finding the Fourth Proportional to 243,489.51, 336,009.08 and 136,060.43

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Solution

The fourth proportional to 243,489.51, 336,009.08 and 136,060.43 is: 187,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,489.51 : 336,009.08 = 136,060.43 : x
  2. Step 2: Convert to fraction form
    243,489.51/336,009.08 = 136,060.43/x
  3. Step 3: Cross multiply
    243,489.51x = 336,009.08 × 136,060.43
  4. Step 4: Simplify right side
    243,489.51x = 45,717,537,803.47
  5. Step 5: Solve for x
    x = 45,717,537,803.47/243,489.51
  6. Step 6: Final answer
    x = 187,759.78

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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.