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Finding the Fourth Proportional to 371,885.39, 513,199.41 and 202,119.52

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Solution

The fourth proportional to 371,885.39, 513,199.41 and 202,119.52 is: 278,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,885.39 : 513,199.41 = 202,119.52 : x
  2. Step 2: Convert to fraction form
    371,885.39/513,199.41 = 202,119.52/x
  3. Step 3: Cross multiply
    371,885.39x = 513,199.41 × 202,119.52
  4. Step 4: Simplify right side
    371,885.39x = 103,727,615,847.49
  5. Step 5: Solve for x
    x = 103,727,615,847.49/371,885.39
  6. Step 6: Final answer
    x = 278,923.61

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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.