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Finding the Fourth Proportional to 302,483.80, 453,691.08 and 80,885.08

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Solution

The fourth proportional to 302,483.80, 453,691.08 and 80,885.08 is: 121,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,483.80 : 453,691.08 = 80,885.08 : x
  2. Step 2: Convert to fraction form
    302,483.80/453,691.08 = 80,885.08/x
  3. Step 3: Cross multiply
    302,483.80x = 453,691.08 × 80,885.08
  4. Step 4: Simplify right side
    302,483.80x = 36,696,839,301.09
  5. Step 5: Solve for x
    x = 36,696,839,301.09/302,483.80
  6. Step 6: Final answer
    x = 121,318.36

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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.