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Finding the Fourth Proportional to 363,554.60, 501,721.90 and 202,419.88

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Solution

The fourth proportional to 363,554.60, 501,721.90 and 202,419.88 is: 279,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,554.60 : 501,721.90 = 202,419.88 : x
  2. Step 2: Convert to fraction form
    363,554.60/501,721.90 = 202,419.88/x
  3. Step 3: Cross multiply
    363,554.60x = 501,721.90 × 202,419.88
  4. Step 4: Simplify right side
    363,554.60x = 101,558,485,031.02
  5. Step 5: Solve for x
    x = 101,558,485,031.02/363,554.60
  6. Step 6: Final answer
    x = 279,348.65

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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.