Home / 408,152.03-612,272.70-138,474.89

Finding the Fourth Proportional to 408,152.03, 612,272.70 and 138,474.89

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Solution

The fourth proportional to 408,152.03, 612,272.70 and 138,474.89 is: 207,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,152.03 : 612,272.70 = 138,474.89 : x
  2. Step 2: Convert to fraction form
    408,152.03/612,272.70 = 138,474.89/x
  3. Step 3: Cross multiply
    408,152.03x = 612,272.70 × 138,474.89
  4. Step 4: Simplify right side
    408,152.03x = 84,784,391,721.14
  5. Step 5: Solve for x
    x = 84,784,391,721.14/408,152.03
  6. Step 6: Final answer
    x = 207,727.48

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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.