Home / 386,023.20-579,135.60-149,373.60

Finding the Fourth Proportional to 386,023.20, 579,135.60 and 149,373.60

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Solution

The fourth proportional to 386,023.20, 579,135.60 and 149,373.60 is: 224,099.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,023.20 : 579,135.60 = 149,373.60 : x
  2. Step 2: Convert to fraction form
    386,023.20/579,135.60 = 149,373.60/x
  3. Step 3: Cross multiply
    386,023.20x = 579,135.60 × 149,373.60
  4. Step 4: Simplify right side
    386,023.20x = 86,507,569,460.16
  5. Step 5: Solve for x
    x = 86,507,569,460.16/386,023.20
  6. Step 6: Final answer
    x = 224,099.41

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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.