Home / 386,306.24-579,542.45-130,164.30

Finding the Fourth Proportional to 386,306.24, 579,542.45 and 130,164.30

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Solution

The fourth proportional to 386,306.24, 579,542.45 and 130,164.30 is: 195,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,306.24 : 579,542.45 = 130,164.30 : x
  2. Step 2: Convert to fraction form
    386,306.24/579,542.45 = 130,164.30/x
  3. Step 3: Cross multiply
    386,306.24x = 579,542.45 × 130,164.30
  4. Step 4: Simplify right side
    386,306.24x = 75,435,736,673.71
  5. Step 5: Solve for x
    x = 75,435,736,673.71/386,306.24
  6. Step 6: Final answer
    x = 195,274.45

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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.