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Finding the Fourth Proportional to 275,472.48, 380,090.16 and 162,305.76

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Solution

The fourth proportional to 275,472.48, 380,090.16 and 162,305.76 is: 223,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,472.48 : 380,090.16 = 162,305.76 : x
  2. Step 2: Convert to fraction form
    275,472.48/380,090.16 = 162,305.76/x
  3. Step 3: Cross multiply
    275,472.48x = 380,090.16 × 162,305.76
  4. Step 4: Simplify right side
    275,472.48x = 61,690,822,287.32
  5. Step 5: Solve for x
    x = 61,690,822,287.32/275,472.48
  6. Step 6: Final answer
    x = 223,945.50

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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.