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Finding the Fourth Proportional to 283,586.40, 425,379.60 and 157,615.20

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Solution

The fourth proportional to 283,586.40, 425,379.60 and 157,615.20 is: 236,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,586.40 : 425,379.60 = 157,615.20 : x
  2. Step 2: Convert to fraction form
    283,586.40/425,379.60 = 157,615.20/x
  3. Step 3: Cross multiply
    283,586.40x = 425,379.60 × 157,615.20
  4. Step 4: Simplify right side
    283,586.40x = 67,046,290,729.92
  5. Step 5: Solve for x
    x = 67,046,290,729.92/283,586.40
  6. Step 6: Final answer
    x = 236,422.80

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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.