Home / 288,856.20-432,938.70-148,542.60

Finding the Fourth Proportional to 288,856.20, 432,938.70 and 148,542.60

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Solution

The fourth proportional to 288,856.20, 432,938.70 and 148,542.60 is: 222,636.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,856.20 : 432,938.70 = 148,542.60 : x
  2. Step 2: Convert to fraction form
    288,856.20/432,938.70 = 148,542.60/x
  3. Step 3: Cross multiply
    288,856.20x = 432,938.70 × 148,542.60
  4. Step 4: Simplify right side
    288,856.20x = 64,309,840,138.62
  5. Step 5: Solve for x
    x = 64,309,840,138.62/288,856.20
  6. Step 6: Final answer
    x = 222,636.18

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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.