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Finding the Fourth Proportional to 403,517.95, 605,050.92 and 187,144.67

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Solution

The fourth proportional to 403,517.95, 605,050.92 and 187,144.67 is: 280,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,517.95 : 605,050.92 = 187,144.67 : x
  2. Step 2: Convert to fraction form
    403,517.95/605,050.92 = 187,144.67/x
  3. Step 3: Cross multiply
    403,517.95x = 605,050.92 × 187,144.67
  4. Step 4: Simplify right side
    403,517.95x = 113,232,056,269.22
  5. Step 5: Solve for x
    x = 113,232,056,269.22/403,517.95
  6. Step 6: Final answer
    x = 280,612.19

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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.