Home / 480,863.20-721,359.60-165,416.80

Finding the Fourth Proportional to 480,863.20, 721,359.60 and 165,416.80

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Solution

The fourth proportional to 480,863.20, 721,359.60 and 165,416.80 is: 248,147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,863.20 : 721,359.60 = 165,416.80 : x
  2. Step 2: Convert to fraction form
    480,863.20/721,359.60 = 165,416.80/x
  3. Step 3: Cross multiply
    480,863.20x = 721,359.60 × 165,416.80
  4. Step 4: Simplify right side
    480,863.20x = 119,324,996,681.28
  5. Step 5: Solve for x
    x = 119,324,996,681.28/480,863.20
  6. Step 6: Final answer
    x = 248,147.49

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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.