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Finding the Fourth Proportional to 283,565.04, 425,430.60 and 83,890.72

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Solution

The fourth proportional to 283,565.04, 425,430.60 and 83,890.72 is: 125,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,565.04 : 425,430.60 = 83,890.72 : x
  2. Step 2: Convert to fraction form
    283,565.04/425,430.60 = 83,890.72/x
  3. Step 3: Cross multiply
    283,565.04x = 425,430.60 × 83,890.72
  4. Step 4: Simplify right side
    283,565.04x = 35,689,679,344.03
  5. Step 5: Solve for x
    x = 35,689,679,344.03/283,565.04
  6. Step 6: Final answer
    x = 125,860.65

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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.