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Finding the Fourth Proportional to 372,580.50, 514,161.15 and 202,815.90

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Solution

The fourth proportional to 372,580.50, 514,161.15 and 202,815.90 is: 279,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,580.50 : 514,161.15 = 202,815.90 : x
  2. Step 2: Convert to fraction form
    372,580.50/514,161.15 = 202,815.90/x
  3. Step 3: Cross multiply
    372,580.50x = 514,161.15 × 202,815.90
  4. Step 4: Simplify right side
    372,580.50x = 104,280,056,382.29
  5. Step 5: Solve for x
    x = 104,280,056,382.29/372,580.50
  6. Step 6: Final answer
    x = 279,885.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.