Home / 386,275.10-579,485.33-155,481.72

Finding the Fourth Proportional to 386,275.10, 579,485.33 and 155,481.72

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Solution

The fourth proportional to 386,275.10, 579,485.33 and 155,481.72 is: 233,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,275.10 : 579,485.33 = 155,481.72 : x
  2. Step 2: Convert to fraction form
    386,275.10/579,485.33 = 155,481.72/x
  3. Step 3: Cross multiply
    386,275.10x = 579,485.33 × 155,481.72
  4. Step 4: Simplify right side
    386,275.10x = 90,099,375,045.76
  5. Step 5: Solve for x
    x = 90,099,375,045.76/386,275.10
  6. Step 6: Final answer
    x = 233,251.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.