Home / 276,133.50-381,066.48-155,273.72

Finding the Fourth Proportional to 276,133.50, 381,066.48 and 155,273.72

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Solution

The fourth proportional to 276,133.50, 381,066.48 and 155,273.72 is: 214,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,133.50 : 381,066.48 = 155,273.72 : x
  2. Step 2: Convert to fraction form
    276,133.50/381,066.48 = 155,273.72/x
  3. Step 3: Cross multiply
    276,133.50x = 381,066.48 × 155,273.72
  4. Step 4: Simplify right side
    276,133.50x = 59,169,608,011.57
  5. Step 5: Solve for x
    x = 59,169,608,011.57/276,133.50
  6. Step 6: Final answer
    x = 214,278.99

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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.