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Finding the Fourth Proportional to 283,860, 425,790 and 159,210.72

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Solution

The fourth proportional to 283,860, 425,790 and 159,210.72 is: 238,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,860 : 425,790 = 159,210.72 : x
  2. Step 2: Convert to fraction form
    283,860/425,790 = 159,210.72/x
  3. Step 3: Cross multiply
    283,860x = 425,790 × 159,210.72
  4. Step 4: Simplify right side
    283,860x = 67,790,332,468.80
  5. Step 5: Solve for x
    x = 67,790,332,468.80/283,860
  6. Step 6: Final answer
    x = 238,816.08

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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.