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Finding the Fourth Proportional to 253,777.55, 380,251.04 and 153,634.21

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Solution

The fourth proportional to 253,777.55, 380,251.04 and 153,634.21 is: 230,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,777.55 : 380,251.04 = 153,634.21 : x
  2. Step 2: Convert to fraction form
    253,777.55/380,251.04 = 153,634.21/x
  3. Step 3: Cross multiply
    253,777.55x = 380,251.04 × 153,634.21
  4. Step 4: Simplify right side
    253,777.55x = 58,419,566,797.37
  5. Step 5: Solve for x
    x = 58,419,566,797.37/253,777.55
  6. Step 6: Final answer
    x = 230,199.91

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1.5x scale

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.