Home / 456,905.52-685,136.25-229,103.28

Finding the Fourth Proportional to 456,905.52, 685,136.25 and 229,103.28

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Solution

The fourth proportional to 456,905.52, 685,136.25 and 229,103.28 is: 343,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,905.52 : 685,136.25 = 229,103.28 : x
  2. Step 2: Convert to fraction form
    456,905.52/685,136.25 = 229,103.28/x
  3. Step 3: Cross multiply
    456,905.52x = 685,136.25 × 229,103.28
  4. Step 4: Simplify right side
    456,905.52x = 156,966,962,121.90
  5. Step 5: Solve for x
    x = 156,966,962,121.90/456,905.52
  6. Step 6: Final answer
    x = 343,543.59

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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.