Home / 276,494.11-381,562.76-155,637.30

Finding the Fourth Proportional to 276,494.11, 381,562.76 and 155,637.30

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Solution

The fourth proportional to 276,494.11, 381,562.76 and 155,637.30 is: 214,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,494.11 : 381,562.76 = 155,637.30 : x
  2. Step 2: Convert to fraction form
    276,494.11/381,562.76 = 155,637.30/x
  3. Step 3: Cross multiply
    276,494.11x = 381,562.76 × 155,637.30
  4. Step 4: Simplify right side
    276,494.11x = 59,385,397,746.95
  5. Step 5: Solve for x
    x = 59,385,397,746.95/276,494.11
  6. Step 6: Final answer
    x = 214,779.97

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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.