Home / 302,480.41-453,686.05-80,881.69

Finding the Fourth Proportional to 302,480.41, 453,686.05 and 80,881.69

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Solution

The fourth proportional to 302,480.41, 453,686.05 and 80,881.69 is: 121,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,480.41 : 453,686.05 = 80,881.69 : x
  2. Step 2: Convert to fraction form
    302,480.41/453,686.05 = 80,881.69/x
  3. Step 3: Cross multiply
    302,480.41x = 453,686.05 × 80,881.69
  4. Step 4: Simplify right side
    302,480.41x = 36,694,894,453.42
  5. Step 5: Solve for x
    x = 36,694,894,453.42/302,480.41
  6. Step 6: Final answer
    x = 121,313.29

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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.