Home / 278,957.89-385,003.98-170,125.38

Finding the Fourth Proportional to 278,957.89, 385,003.98 and 170,125.38

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Solution

The fourth proportional to 278,957.89, 385,003.98 and 170,125.38 is: 234,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,957.89 : 385,003.98 = 170,125.38 : x
  2. Step 2: Convert to fraction form
    278,957.89/385,003.98 = 170,125.38/x
  3. Step 3: Cross multiply
    278,957.89x = 385,003.98 × 170,125.38
  4. Step 4: Simplify right side
    278,957.89x = 65,498,948,399.01
  5. Step 5: Solve for x
    x = 65,498,948,399.01/278,957.89
  6. Step 6: Final answer
    x = 234,798.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.