Home / 258,380.28-356,562.54-145,202.76

Finding the Fourth Proportional to 258,380.28, 356,562.54 and 145,202.76

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Solution

The fourth proportional to 258,380.28, 356,562.54 and 145,202.76 is: 200,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,380.28 : 356,562.54 = 145,202.76 : x
  2. Step 2: Convert to fraction form
    258,380.28/356,562.54 = 145,202.76/x
  3. Step 3: Cross multiply
    258,380.28x = 356,562.54 × 145,202.76
  4. Step 4: Simplify right side
    258,380.28x = 51,773,864,920.61
  5. Step 5: Solve for x
    x = 51,773,864,920.61/258,380.28
  6. Step 6: Final answer
    x = 200,378.55

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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.