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Finding the Fourth Proportional to 283,617.20, 425,425.80 and 141,899.60

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Solution

The fourth proportional to 283,617.20, 425,425.80 and 141,899.60 is: 212,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,617.20 : 425,425.80 = 141,899.60 : x
  2. Step 2: Convert to fraction form
    283,617.20/425,425.80 = 141,899.60/x
  3. Step 3: Cross multiply
    283,617.20x = 425,425.80 × 141,899.60
  4. Step 4: Simplify right side
    283,617.20x = 60,367,750,849.68
  5. Step 5: Solve for x
    x = 60,367,750,849.68/283,617.20
  6. Step 6: Final answer
    x = 212,849.40

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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.