Home / 303,766.10-455,649.15-209,287.70

Finding the Fourth Proportional to 303,766.10, 455,649.15 and 209,287.70

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Solution

The fourth proportional to 303,766.10, 455,649.15 and 209,287.70 is: 313,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,766.10 : 455,649.15 = 209,287.70 : x
  2. Step 2: Convert to fraction form
    303,766.10/455,649.15 = 209,287.70/x
  3. Step 3: Cross multiply
    303,766.10x = 455,649.15 × 209,287.70
  4. Step 4: Simplify right side
    303,766.10x = 95,361,762,610.46
  5. Step 5: Solve for x
    x = 95,361,762,610.46/303,766.10
  6. Step 6: Final answer
    x = 313,931.55

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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.