Home / 371,859.14-513,145.94-210,716.12

Finding the Fourth Proportional to 371,859.14, 513,145.94 and 210,716.12

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Solution

The fourth proportional to 371,859.14, 513,145.94 and 210,716.12 is: 290,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,859.14 : 513,145.94 = 210,716.12 : x
  2. Step 2: Convert to fraction form
    371,859.14/513,145.94 = 210,716.12/x
  3. Step 3: Cross multiply
    371,859.14x = 513,145.94 × 210,716.12
  4. Step 4: Simplify right side
    371,859.14x = 108,128,121,470.55
  5. Step 5: Solve for x
    x = 108,128,121,470.55/371,859.14
  6. Step 6: Final answer
    x = 290,777.10

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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.