Home / 386,177.10-532,895.31-216,378.42

Finding the Fourth Proportional to 386,177.10, 532,895.31 and 216,378.42

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Solution

The fourth proportional to 386,177.10, 532,895.31 and 216,378.42 is: 298,585.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,177.10 : 532,895.31 = 216,378.42 : x
  2. Step 2: Convert to fraction form
    386,177.10/532,895.31 = 216,378.42/x
  3. Step 3: Cross multiply
    386,177.10x = 532,895.31 × 216,378.42
  4. Step 4: Simplify right side
    386,177.10x = 115,307,045,203.21
  5. Step 5: Solve for x
    x = 115,307,045,203.21/386,177.10
  6. Step 6: Final answer
    x = 298,585.92

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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.