Home / 321,824.80-482,613.60-153,215.20

Finding the Fourth Proportional to 321,824.80, 482,613.60 and 153,215.20

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Solution

The fourth proportional to 321,824.80, 482,613.60 and 153,215.20 is: 229,763.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,824.80 : 482,613.60 = 153,215.20 : x
  2. Step 2: Convert to fraction form
    321,824.80/482,613.60 = 153,215.20/x
  3. Step 3: Cross multiply
    321,824.80x = 482,613.60 × 153,215.20
  4. Step 4: Simplify right side
    321,824.80x = 73,943,739,246.72
  5. Step 5: Solve for x
    x = 73,943,739,246.72/321,824.80
  6. Step 6: Final answer
    x = 229,763.96

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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.