Home / 460,121.20-690,205.20-144,581.20

Finding the Fourth Proportional to 460,121.20, 690,205.20 and 144,581.20

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Solution

The fourth proportional to 460,121.20, 690,205.20 and 144,581.20 is: 216,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,121.20 : 690,205.20 = 144,581.20 : x
  2. Step 2: Convert to fraction form
    460,121.20/690,205.20 = 144,581.20/x
  3. Step 3: Cross multiply
    460,121.20x = 690,205.20 × 144,581.20
  4. Step 4: Simplify right side
    460,121.20x = 99,790,696,062.24
  5. Step 5: Solve for x
    x = 99,790,696,062.24/460,121.20
  6. Step 6: Final answer
    x = 216,879.15

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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.