Home / 460,090.20-690,135.30-144,546.60

Finding the Fourth Proportional to 460,090.20, 690,135.30 and 144,546.60

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Solution

The fourth proportional to 460,090.20, 690,135.30 and 144,546.60 is: 216,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,090.20 : 690,135.30 = 144,546.60 : x
  2. Step 2: Convert to fraction form
    460,090.20/690,135.30 = 144,546.60/x
  3. Step 3: Cross multiply
    460,090.20x = 690,135.30 × 144,546.60
  4. Step 4: Simplify right side
    460,090.20x = 99,756,711,154.98
  5. Step 5: Solve for x
    x = 99,756,711,154.98/460,090.20
  6. Step 6: Final answer
    x = 216,819.90

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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.