Home / 345,832.79-518,794.55-135,443.39

Finding the Fourth Proportional to 345,832.79, 518,794.55 and 135,443.39

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Solution

The fourth proportional to 345,832.79, 518,794.55 and 135,443.39 is: 203,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,832.79 : 518,794.55 = 135,443.39 : x
  2. Step 2: Convert to fraction form
    345,832.79/518,794.55 = 135,443.39/x
  3. Step 3: Cross multiply
    345,832.79x = 518,794.55 × 135,443.39
  4. Step 4: Simplify right side
    345,832.79x = 70,267,289,294.33
  5. Step 5: Solve for x
    x = 70,267,289,294.33/345,832.79
  6. Step 6: Final answer
    x = 203,182.85

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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.