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Finding the Fourth Proportional to 363,267.78, 501,312 and 202,129.62

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Solution

The fourth proportional to 363,267.78, 501,312 and 202,129.62 is: 278,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,267.78 : 501,312 = 202,129.62 : x
  2. Step 2: Convert to fraction form
    363,267.78/501,312 = 202,129.62/x
  3. Step 3: Cross multiply
    363,267.78x = 501,312 × 202,129.62
  4. Step 4: Simplify right side
    363,267.78x = 101,330,004,061.44
  5. Step 5: Solve for x
    x = 101,330,004,061.44/363,267.78
  6. Step 6: Final answer
    x = 278,940.25

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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.