Home / 411,721.20-617,610.60-162,370.80

Finding the Fourth Proportional to 411,721.20, 617,610.60 and 162,370.80

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Solution

The fourth proportional to 411,721.20, 617,610.60 and 162,370.80 is: 243,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,721.20 : 617,610.60 = 162,370.80 : x
  2. Step 2: Convert to fraction form
    411,721.20/617,610.60 = 162,370.80/x
  3. Step 3: Cross multiply
    411,721.20x = 617,610.60 × 162,370.80
  4. Step 4: Simplify right side
    411,721.20x = 100,281,927,210.48
  5. Step 5: Solve for x
    x = 100,281,927,210.48/411,721.20
  6. Step 6: Final answer
    x = 243,567.56

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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.