Home / 371,945.78-513,285.51-202,179.90

Finding the Fourth Proportional to 371,945.78, 513,285.51 and 202,179.90

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Solution

The fourth proportional to 371,945.78, 513,285.51 and 202,179.90 is: 279,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,945.78 : 513,285.51 = 202,179.90 : x
  2. Step 2: Convert to fraction form
    371,945.78/513,285.51 = 202,179.90/x
  3. Step 3: Cross multiply
    371,945.78x = 513,285.51 × 202,179.90
  4. Step 4: Simplify right side
    371,945.78x = 103,776,013,083.25
  5. Step 5: Solve for x
    x = 103,776,013,083.25/371,945.78
  6. Step 6: Final answer
    x = 279,008.44

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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.