Home / 345,558.62-518,381.76-135,169.22

Finding the Fourth Proportional to 345,558.62, 518,381.76 and 135,169.22

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Solution

The fourth proportional to 345,558.62, 518,381.76 and 135,169.22 is: 202,770.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,558.62 : 518,381.76 = 135,169.22 : x
  2. Step 2: Convert to fraction form
    345,558.62/518,381.76 = 135,169.22/x
  3. Step 3: Cross multiply
    345,558.62x = 518,381.76 × 135,169.22
  4. Step 4: Simplify right side
    345,558.62x = 70,069,259,964.27
  5. Step 5: Solve for x
    x = 70,069,259,964.27/345,558.62
  6. Step 6: Final answer
    x = 202,770.98

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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.