Home / 439,192.56-658,490.76-139,583.28

Finding the Fourth Proportional to 439,192.56, 658,490.76 and 139,583.28

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Solution

The fourth proportional to 439,192.56, 658,490.76 and 139,583.28 is: 209,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,192.56 : 658,490.76 = 139,583.28 : x
  2. Step 2: Convert to fraction form
    439,192.56/658,490.76 = 139,583.28/x
  3. Step 3: Cross multiply
    439,192.56x = 658,490.76 × 139,583.28
  4. Step 4: Simplify right side
    439,192.56x = 91,914,300,130.49
  5. Step 5: Solve for x
    x = 91,914,300,130.49/439,192.56
  6. Step 6: Final answer
    x = 209,280.18

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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.