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Finding the Fourth Proportional to 253,884.80, 350,360.30 and 140,707.55

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Solution

The fourth proportional to 253,884.80, 350,360.30 and 140,707.55 is: 194,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,884.80 : 350,360.30 = 140,707.55 : x
  2. Step 2: Convert to fraction form
    253,884.80/350,360.30 = 140,707.55/x
  3. Step 3: Cross multiply
    253,884.80x = 350,360.30 × 140,707.55
  4. Step 4: Simplify right side
    253,884.80x = 49,298,338,726.73
  5. Step 5: Solve for x
    x = 49,298,338,726.73/253,884.80
  6. Step 6: Final answer
    x = 194,176.01

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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.