Home / 276,586.25-381,657.47-155,724.42

Finding the Fourth Proportional to 276,586.25, 381,657.47 and 155,724.42

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Solution

The fourth proportional to 276,586.25, 381,657.47 and 155,724.42 is: 214,881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,586.25 : 381,657.47 = 155,724.42 : x
  2. Step 2: Convert to fraction form
    276,586.25/381,657.47 = 155,724.42/x
  3. Step 3: Cross multiply
    276,586.25x = 381,657.47 × 155,724.42
  4. Step 4: Simplify right side
    276,586.25x = 59,433,389,682.96
  5. Step 5: Solve for x
    x = 59,433,389,682.96/276,586.25
  6. Step 6: Final answer
    x = 214,881.94

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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.