Home / 408,220.40-612,339.03-148,549.12

Finding the Fourth Proportional to 408,220.40, 612,339.03 and 148,549.12

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Solution

The fourth proportional to 408,220.40, 612,339.03 and 148,549.12 is: 222,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,220.40 : 612,339.03 = 148,549.12 : x
  2. Step 2: Convert to fraction form
    408,220.40/612,339.03 = 148,549.12/x
  3. Step 3: Cross multiply
    408,220.40x = 612,339.03 × 148,549.12
  4. Step 4: Simplify right side
    408,220.40x = 90,962,424,048.15
  5. Step 5: Solve for x
    x = 90,962,424,048.15/408,220.40
  6. Step 6: Final answer
    x = 222,826.75

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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.