Home / 279,288.27-385,352.24-158,401.71

Finding the Fourth Proportional to 279,288.27, 385,352.24 and 158,401.71

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Solution

The fourth proportional to 279,288.27, 385,352.24 and 158,401.71 is: 218,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,288.27 : 385,352.24 = 158,401.71 : x
  2. Step 2: Convert to fraction form
    279,288.27/385,352.24 = 158,401.71/x
  3. Step 3: Cross multiply
    279,288.27x = 385,352.24 × 158,401.71
  4. Step 4: Simplify right side
    279,288.27x = 61,040,452,976.32
  5. Step 5: Solve for x
    x = 61,040,452,976.32/279,288.27
  6. Step 6: Final answer
    x = 218,557.17

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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.