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Finding the Fourth Proportional to 302,353.53, 453,595.91 and 91,986

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Solution

The fourth proportional to 302,353.53, 453,595.91 and 91,986 is: 137,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,353.53 : 453,595.91 = 91,986 : x
  2. Step 2: Convert to fraction form
    302,353.53/453,595.91 = 91,986/x
  3. Step 3: Cross multiply
    302,353.53x = 453,595.91 × 91,986
  4. Step 4: Simplify right side
    302,353.53x = 41,724,472,917.33
  5. Step 5: Solve for x
    x = 41,724,472,917.33/302,353.53
  6. Step 6: Final answer
    x = 137,998.96

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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.