Home / 386,201.10-579,301.65-120,043.20

Finding the Fourth Proportional to 386,201.10, 579,301.65 and 120,043.20

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Solution

The fourth proportional to 386,201.10, 579,301.65 and 120,043.20 is: 180,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,201.10 : 579,301.65 = 120,043.20 : x
  2. Step 2: Convert to fraction form
    386,201.10/579,301.65 = 120,043.20/x
  3. Step 3: Cross multiply
    386,201.10x = 579,301.65 × 120,043.20
  4. Step 4: Simplify right side
    386,201.10x = 69,541,223,831.28
  5. Step 5: Solve for x
    x = 69,541,223,831.28/386,201.10
  6. Step 6: Final answer
    x = 180,064.80

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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.