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Finding the Fourth Proportional to 275,355.36, 380,010.06 and 152,854.20

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Solution

The fourth proportional to 275,355.36, 380,010.06 and 152,854.20 is: 210,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,355.36 : 380,010.06 = 152,854.20 : x
  2. Step 2: Convert to fraction form
    275,355.36/380,010.06 = 152,854.20/x
  3. Step 3: Cross multiply
    275,355.36x = 380,010.06 × 152,854.20
  4. Step 4: Simplify right side
    275,355.36x = 58,086,133,713.25
  5. Step 5: Solve for x
    x = 58,086,133,713.25/275,355.36
  6. Step 6: Final answer
    x = 210,949.71

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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.