Home / 276,457.96-380,979.30-200,886.76

Finding the Fourth Proportional to 276,457.96, 380,979.30 and 200,886.76

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Solution

The fourth proportional to 276,457.96, 380,979.30 and 200,886.76 is: 276,836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,457.96 : 380,979.30 = 200,886.76 : x
  2. Step 2: Convert to fraction form
    276,457.96/380,979.30 = 200,886.76/x
  3. Step 3: Cross multiply
    276,457.96x = 380,979.30 × 200,886.76
  4. Step 4: Simplify right side
    276,457.96x = 76,533,697,204.07
  5. Step 5: Solve for x
    x = 76,533,697,204.07/276,457.96
  6. Step 6: Final answer
    x = 276,836.66

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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.