Home / 276,613.92-381,723.56-155,767.12

Finding the Fourth Proportional to 276,613.92, 381,723.56 and 155,767.12

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Solution

The fourth proportional to 276,613.92, 381,723.56 and 155,767.12 is: 214,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,613.92 : 381,723.56 = 155,767.12 : x
  2. Step 2: Convert to fraction form
    276,613.92/381,723.56 = 155,767.12/x
  3. Step 3: Cross multiply
    276,613.92x = 381,723.56 × 155,767.12
  4. Step 4: Simplify right side
    276,613.92x = 59,459,979,577.35
  5. Step 5: Solve for x
    x = 59,459,979,577.35/276,613.92
  6. Step 6: Final answer
    x = 214,956.57

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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.