Home / 345,110.41-517,229.43-155,368.72

Finding the Fourth Proportional to 345,110.41, 517,229.43 and 155,368.72

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Solution

The fourth proportional to 345,110.41, 517,229.43 and 155,368.72 is: 232,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,110.41 : 517,229.43 = 155,368.72 : x
  2. Step 2: Convert to fraction form
    345,110.41/517,229.43 = 155,368.72/x
  3. Step 3: Cross multiply
    345,110.41x = 517,229.43 × 155,368.72
  4. Step 4: Simplify right side
    345,110.41x = 80,361,274,485.43
  5. Step 5: Solve for x
    x = 80,361,274,485.43/345,110.41
  6. Step 6: Final answer
    x = 232,856.71

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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.