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Finding the Fourth Proportional to 323,742.40, 486,650.40 and 230,891.20

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Solution

The fourth proportional to 323,742.40, 486,650.40 and 230,891.20 is: 347,076.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,742.40 : 486,650.40 = 230,891.20 : x
  2. Step 2: Convert to fraction form
    323,742.40/486,650.40 = 230,891.20/x
  3. Step 3: Cross multiply
    323,742.40x = 486,650.40 × 230,891.20
  4. Step 4: Simplify right side
    323,742.40x = 112,363,294,836.48
  5. Step 5: Solve for x
    x = 112,363,294,836.48/323,742.40
  6. Step 6: Final answer
    x = 347,076.24

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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.