Home / 438,827.47-658,173.97-139,269.22

Finding the Fourth Proportional to 438,827.47, 658,173.97 and 139,269.22

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Solution

The fourth proportional to 438,827.47, 658,173.97 and 139,269.22 is: 208,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,827.47 : 658,173.97 = 139,269.22 : x
  2. Step 2: Convert to fraction form
    438,827.47/658,173.97 = 139,269.22/x
  3. Step 3: Cross multiply
    438,827.47x = 658,173.97 × 139,269.22
  4. Step 4: Simplify right side
    438,827.47x = 91,663,375,426.20
  5. Step 5: Solve for x
    x = 91,663,375,426.20/438,827.47
  6. Step 6: Final answer
    x = 208,882.49

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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.