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Finding the Fourth Proportional to 275,473.85, 380,135.36 and 152,959.92

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Solution

The fourth proportional to 275,473.85, 380,135.36 and 152,959.92 is: 211,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,473.85 : 380,135.36 = 152,959.92 : x
  2. Step 2: Convert to fraction form
    275,473.85/380,135.36 = 152,959.92/x
  3. Step 3: Cross multiply
    275,473.85x = 380,135.36 × 152,959.92
  4. Step 4: Simplify right side
    275,473.85x = 58,145,473,489.97
  5. Step 5: Solve for x
    x = 58,145,473,489.97/275,473.85
  6. Step 6: Final answer
    x = 211,074.39

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1.5x scale

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.