Home / 321,971.45-482,760.25-153,543.29

Finding the Fourth Proportional to 321,971.45, 482,760.25 and 153,543.29

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Solution

The fourth proportional to 321,971.45, 482,760.25 and 153,543.29 is: 230,221.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,971.45 : 482,760.25 = 153,543.29 : x
  2. Step 2: Convert to fraction form
    321,971.45/482,760.25 = 153,543.29/x
  3. Step 3: Cross multiply
    321,971.45x = 482,760.25 × 153,543.29
  4. Step 4: Simplify right side
    321,971.45x = 74,124,594,268.56
  5. Step 5: Solve for x
    x = 74,124,594,268.56/321,971.45
  6. Step 6: Final answer
    x = 230,221.02

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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.