Home / 345,453.39-518,180.09-134,943.71

Finding the Fourth Proportional to 345,453.39, 518,180.09 and 134,943.71

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Solution

The fourth proportional to 345,453.39, 518,180.09 and 134,943.71 is: 202,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,453.39 : 518,180.09 = 134,943.71 : x
  2. Step 2: Convert to fraction form
    345,453.39/518,180.09 = 134,943.71/x
  3. Step 3: Cross multiply
    345,453.39x = 518,180.09 × 134,943.71
  4. Step 4: Simplify right side
    345,453.39x = 69,925,140,527.11
  5. Step 5: Solve for x
    x = 69,925,140,527.11/345,453.39
  6. Step 6: Final answer
    x = 202,415.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.