Home / 438,217.61-657,399.12-153,834.44

Finding the Fourth Proportional to 438,217.61, 657,399.12 and 153,834.44

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Solution

The fourth proportional to 438,217.61, 657,399.12 and 153,834.44 is: 230,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,217.61 : 657,399.12 = 153,834.44 : x
  2. Step 2: Convert to fraction form
    438,217.61/657,399.12 = 153,834.44/x
  3. Step 3: Cross multiply
    438,217.61x = 657,399.12 × 153,834.44
  4. Step 4: Simplify right side
    438,217.61x = 101,130,625,481.69
  5. Step 5: Solve for x
    x = 101,130,625,481.69/438,217.61
  6. Step 6: Final answer
    x = 230,777.18

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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.