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Finding the Fourth Proportional to 283,615.20, 425,422.80 and 231,127.20

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Solution

The fourth proportional to 283,615.20, 425,422.80 and 231,127.20 is: 346,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.20 : 425,422.80 = 231,127.20 : x
  2. Step 2: Convert to fraction form
    283,615.20/425,422.80 = 231,127.20/x
  3. Step 3: Cross multiply
    283,615.20x = 425,422.80 × 231,127.20
  4. Step 4: Simplify right side
    283,615.20x = 98,326,780,580.16
  5. Step 5: Solve for x
    x = 98,326,780,580.16/283,615.20
  6. Step 6: Final answer
    x = 346,690.80

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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.