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Finding the Fourth Proportional to 171,712.43, 256,305.42 and 159,679.07

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Solution

The fourth proportional to 171,712.43, 256,305.42 and 159,679.07 is: 238,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,712.43 : 256,305.42 = 159,679.07 : x
  2. Step 2: Convert to fraction form
    171,712.43/256,305.42 = 159,679.07/x
  3. Step 3: Cross multiply
    171,712.43x = 256,305.42 × 159,679.07
  4. Step 4: Simplify right side
    171,712.43x = 40,926,610,303.16
  5. Step 5: Solve for x
    x = 40,926,610,303.16/171,712.43
  6. Step 6: Final answer
    x = 238,343.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.