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Finding the Fourth Proportional to 372,063.60, 513,433.62 and 202,297.86

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Solution

The fourth proportional to 372,063.60, 513,433.62 and 202,297.86 is: 279,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,063.60 : 513,433.62 = 202,297.86 : x
  2. Step 2: Convert to fraction form
    372,063.60/513,433.62 = 202,297.86/x
  3. Step 3: Cross multiply
    372,063.60x = 513,433.62 × 202,297.86
  4. Step 4: Simplify right side
    372,063.60x = 103,866,522,578.05
  5. Step 5: Solve for x
    x = 103,866,522,578.05/372,063.60
  6. Step 6: Final answer
    x = 279,163.35

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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.