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Finding the Fourth Proportional to 275,568.93, 380,255.72 and 154,723.50

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Solution

The fourth proportional to 275,568.93, 380,255.72 and 154,723.50 is: 213,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,568.93 : 380,255.72 = 154,723.50 : x
  2. Step 2: Convert to fraction form
    275,568.93/380,255.72 = 154,723.50/x
  3. Step 3: Cross multiply
    275,568.93x = 380,255.72 × 154,723.50
  4. Step 4: Simplify right side
    275,568.93x = 58,834,495,119.80
  5. Step 5: Solve for x
    x = 58,834,495,119.80/275,568.93
  6. Step 6: Final answer
    x = 213,501.92

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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.