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Finding the Fourth Proportional to 302,479.80, 453,685.08 and 80,881.08

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Solution

The fourth proportional to 302,479.80, 453,685.08 and 80,881.08 is: 121,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,479.80 : 453,685.08 = 80,881.08 : x
  2. Step 2: Convert to fraction form
    302,479.80/453,685.08 = 80,881.08/x
  3. Step 3: Cross multiply
    302,479.80x = 453,685.08 × 80,881.08
  4. Step 4: Simplify right side
    302,479.80x = 36,694,539,250.29
  5. Step 5: Solve for x
    x = 36,694,539,250.29/302,479.80
  6. Step 6: Final answer
    x = 121,312.36

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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.