Home / 275,966.46-380,837.10-155,100.66

Finding the Fourth Proportional to 275,966.46, 380,837.10 and 155,100.66

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Solution

The fourth proportional to 275,966.46, 380,837.10 and 155,100.66 is: 214,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,966.46 : 380,837.10 = 155,100.66 : x
  2. Step 2: Convert to fraction form
    275,966.46/380,837.10 = 155,100.66/x
  3. Step 3: Cross multiply
    275,966.46x = 380,837.10 × 155,100.66
  4. Step 4: Simplify right side
    275,966.46x = 59,068,085,562.49
  5. Step 5: Solve for x
    x = 59,068,085,562.49/275,966.46
  6. Step 6: Final answer
    x = 214,040.81

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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.