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Finding the Fourth Proportional to 208,377.11, 312,529.25 and 58,581.81

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Solution

The fourth proportional to 208,377.11, 312,529.25 and 58,581.81 is: 87,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,377.11 : 312,529.25 = 58,581.81 : x
  2. Step 2: Convert to fraction form
    208,377.11/312,529.25 = 58,581.81/x
  3. Step 3: Cross multiply
    208,377.11x = 312,529.25 × 58,581.81
  4. Step 4: Simplify right side
    208,377.11x = 18,308,528,850.03
  5. Step 5: Solve for x
    x = 18,308,528,850.03/208,377.11
  6. Step 6: Final answer
    x = 87,862.48

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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.