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Finding the Fourth Proportional to 302,046.65, 453,134.78 and 91,705.85

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Solution

The fourth proportional to 302,046.65, 453,134.78 and 91,705.85 is: 137,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,046.65 : 453,134.78 = 91,705.85 : x
  2. Step 2: Convert to fraction form
    302,046.65/453,134.78 = 91,705.85/x
  3. Step 3: Cross multiply
    302,046.65x = 453,134.78 × 91,705.85
  4. Step 4: Simplify right side
    302,046.65x = 41,555,109,705.93
  5. Step 5: Solve for x
    x = 41,555,109,705.93/302,046.65
  6. Step 6: Final answer
    x = 137,578.45

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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.