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Finding the Fourth Proportional to 181,298.16, 271,853.80 and 81,372.68

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Solution

The fourth proportional to 181,298.16, 271,853.80 and 81,372.68 is: 122,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,298.16 : 271,853.80 = 81,372.68 : x
  2. Step 2: Convert to fraction form
    181,298.16/271,853.80 = 81,372.68/x
  3. Step 3: Cross multiply
    181,298.16x = 271,853.80 × 81,372.68
  4. Step 4: Simplify right side
    181,298.16x = 22,121,472,274.18
  5. Step 5: Solve for x
    x = 22,121,472,274.18/181,298.16
  6. Step 6: Final answer
    x = 122,017.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.