Home / 480,759.20-721,203.60-165,312.80

Finding the Fourth Proportional to 480,759.20, 721,203.60 and 165,312.80

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Solution

The fourth proportional to 480,759.20, 721,203.60 and 165,312.80 is: 247,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,759.20 : 721,203.60 = 165,312.80 : x
  2. Step 2: Convert to fraction form
    480,759.20/721,203.60 = 165,312.80/x
  3. Step 3: Cross multiply
    480,759.20x = 721,203.60 × 165,312.80
  4. Step 4: Simplify right side
    480,759.20x = 119,224,186,486.08
  5. Step 5: Solve for x
    x = 119,224,186,486.08/480,759.20
  6. Step 6: Final answer
    x = 247,991.48

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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.