Home / 302,479.91-453,685.30-80,881.19

Finding the Fourth Proportional to 302,479.91, 453,685.30 and 80,881.19

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Solution

The fourth proportional to 302,479.91, 453,685.30 and 80,881.19 is: 121,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,479.91 : 453,685.30 = 80,881.19 : x
  2. Step 2: Convert to fraction form
    302,479.91/453,685.30 = 80,881.19/x
  3. Step 3: Cross multiply
    302,479.91x = 453,685.30 × 80,881.19
  4. Step 4: Simplify right side
    302,479.91x = 36,694,604,478.88
  5. Step 5: Solve for x
    x = 36,694,604,478.88/302,479.91
  6. Step 6: Final answer
    x = 121,312.54

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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.