Home / 279,086.16-385,127.20-158,235.56

Finding the Fourth Proportional to 279,086.16, 385,127.20 and 158,235.56

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Solution

The fourth proportional to 279,086.16, 385,127.20 and 158,235.56 is: 218,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,086.16 : 385,127.20 = 158,235.56 : x
  2. Step 2: Convert to fraction form
    279,086.16/385,127.20 = 158,235.56/x
  3. Step 3: Cross multiply
    279,086.16x = 385,127.20 × 158,235.56
  4. Step 4: Simplify right side
    279,086.16x = 60,940,818,163.23
  5. Step 5: Solve for x
    x = 60,940,818,163.23/279,086.16
  6. Step 6: Final answer
    x = 218,358.44

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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.