Home / 225,491.40-338,128.02-83,240.28

Finding the Fourth Proportional to 225,491.40, 338,128.02 and 83,240.28

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Solution

The fourth proportional to 225,491.40, 338,128.02 and 83,240.28 is: 124,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,491.40 : 338,128.02 = 83,240.28 : x
  2. Step 2: Convert to fraction form
    225,491.40/338,128.02 = 83,240.28/x
  3. Step 3: Cross multiply
    225,491.40x = 338,128.02 × 83,240.28
  4. Step 4: Simplify right side
    225,491.40x = 28,145,871,060.65
  5. Step 5: Solve for x
    x = 28,145,871,060.65/225,491.40
  6. Step 6: Final answer
    x = 124,820.15

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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.