Home / 386,079.24-532,794.60-216,309.72

Finding the Fourth Proportional to 386,079.24, 532,794.60 and 216,309.72

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Solution

The fourth proportional to 386,079.24, 532,794.60 and 216,309.72 is: 298,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,079.24 : 532,794.60 = 216,309.72 : x
  2. Step 2: Convert to fraction form
    386,079.24/532,794.60 = 216,309.72/x
  3. Step 3: Cross multiply
    386,079.24x = 532,794.60 × 216,309.72
  4. Step 4: Simplify right side
    386,079.24x = 115,248,650,743.51
  5. Step 5: Solve for x
    x = 115,248,650,743.51/386,079.24
  6. Step 6: Final answer
    x = 298,510.35

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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.