Home / 454,422.40-681,633.60-155,240.80

Finding the Fourth Proportional to 454,422.40, 681,633.60 and 155,240.80

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Solution

The fourth proportional to 454,422.40, 681,633.60 and 155,240.80 is: 232,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,422.40 : 681,633.60 = 155,240.80 : x
  2. Step 2: Convert to fraction form
    454,422.40/681,633.60 = 155,240.80/x
  3. Step 3: Cross multiply
    454,422.40x = 681,633.60 × 155,240.80
  4. Step 4: Simplify right side
    454,422.40x = 105,817,345,370.88
  5. Step 5: Solve for x
    x = 105,817,345,370.88/454,422.40
  6. Step 6: Final answer
    x = 232,861.20

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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.