Home / 386,040.48-532,757.76-216,329.28

Finding the Fourth Proportional to 386,040.48, 532,757.76 and 216,329.28

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Solution

The fourth proportional to 386,040.48, 532,757.76 and 216,329.28 is: 298,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,040.48 : 532,757.76 = 216,329.28 : x
  2. Step 2: Convert to fraction form
    386,040.48/532,757.76 = 216,329.28/x
  3. Step 3: Cross multiply
    386,040.48x = 532,757.76 × 216,329.28
  4. Step 4: Simplify right side
    386,040.48x = 115,251,102,635.21
  5. Step 5: Solve for x
    x = 115,251,102,635.21/386,040.48
  6. Step 6: Final answer
    x = 298,546.68

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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.