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Finding the Fourth Proportional to 275,387.96, 380,004.54 and 154,504.10

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Solution

The fourth proportional to 275,387.96, 380,004.54 and 154,504.10 is: 213,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,387.96 : 380,004.54 = 154,504.10 : x
  2. Step 2: Convert to fraction form
    275,387.96/380,004.54 = 154,504.10/x
  3. Step 3: Cross multiply
    275,387.96x = 380,004.54 × 154,504.10
  4. Step 4: Simplify right side
    275,387.96x = 58,712,259,448.61
  5. Step 5: Solve for x
    x = 58,712,259,448.61/275,387.96
  6. Step 6: Final answer
    x = 213,198.35

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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.