Home / 302,581.20-453,871.80-80,965.20

Finding the Fourth Proportional to 302,581.20, 453,871.80 and 80,965.20

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Solution

The fourth proportional to 302,581.20, 453,871.80 and 80,965.20 is: 121,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,581.20 : 453,871.80 = 80,965.20 : x
  2. Step 2: Convert to fraction form
    302,581.20/453,871.80 = 80,965.20/x
  3. Step 3: Cross multiply
    302,581.20x = 453,871.80 × 80,965.20
  4. Step 4: Simplify right side
    302,581.20x = 36,747,821,061.36
  5. Step 5: Solve for x
    x = 36,747,821,061.36/302,581.20
  6. Step 6: Final answer
    x = 121,447.80

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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.