Home / 276,728.40-415,092.60-191,107.35

Finding the Fourth Proportional to 276,728.40, 415,092.60 and 191,107.35

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Solution

The fourth proportional to 276,728.40, 415,092.60 and 191,107.35 is: 286,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,728.40 : 415,092.60 = 191,107.35 : x
  2. Step 2: Convert to fraction form
    276,728.40/415,092.60 = 191,107.35/x
  3. Step 3: Cross multiply
    276,728.40x = 415,092.60 × 191,107.35
  4. Step 4: Simplify right side
    276,728.40x = 79,327,246,790.61
  5. Step 5: Solve for x
    x = 79,327,246,790.61/276,728.40
  6. Step 6: Final answer
    x = 286,661.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.