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Finding the Fourth Proportional to 391,800.68, 587,505.18 and 181,258.28

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Solution

The fourth proportional to 391,800.68, 587,505.18 and 181,258.28 is: 271,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,800.68 : 587,505.18 = 181,258.28 : x
  2. Step 2: Convert to fraction form
    391,800.68/587,505.18 = 181,258.28/x
  3. Step 3: Cross multiply
    391,800.68x = 587,505.18 × 181,258.28
  4. Step 4: Simplify right side
    391,800.68x = 106,490,178,417.89
  5. Step 5: Solve for x
    x = 106,490,178,417.89/391,800.68
  6. Step 6: Final answer
    x = 271,796.82

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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.