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Finding the Fourth Proportional to 302,703.20, 453,948.45 and 89,414.20

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Solution

The fourth proportional to 302,703.20, 453,948.45 and 89,414.20 is: 134,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,703.20 : 453,948.45 = 89,414.20 : x
  2. Step 2: Convert to fraction form
    302,703.20/453,948.45 = 89,414.20/x
  3. Step 3: Cross multiply
    302,703.20x = 453,948.45 × 89,414.20
  4. Step 4: Simplify right side
    302,703.20x = 40,589,437,497.99
  5. Step 5: Solve for x
    x = 40,589,437,497.99/302,703.20
  6. Step 6: Final answer
    x = 134,089.89

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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.