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Finding the Fourth Proportional to 372,070.26, 513,453.38 and 202,304.42

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Solution

The fourth proportional to 372,070.26, 513,453.38 and 202,304.42 is: 279,178.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,070.26 : 513,453.38 = 202,304.42 : x
  2. Step 2: Convert to fraction form
    372,070.26/513,453.38 = 202,304.42/x
  3. Step 3: Cross multiply
    372,070.26x = 513,453.38 × 202,304.42
  4. Step 4: Simplify right side
    372,070.26x = 103,873,888,237.94
  5. Step 5: Solve for x
    x = 103,873,888,237.94/372,070.26
  6. Step 6: Final answer
    x = 279,178.15

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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.