Home / 276,333.01-381,312.35-155,471.64

Finding the Fourth Proportional to 276,333.01, 381,312.35 and 155,471.64

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Solution

The fourth proportional to 276,333.01, 381,312.35 and 155,471.64 is: 214,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,333.01 : 381,312.35 = 155,471.64 : x
  2. Step 2: Convert to fraction form
    276,333.01/381,312.35 = 155,471.64/x
  3. Step 3: Cross multiply
    276,333.01x = 381,312.35 × 155,471.64
  4. Step 4: Simplify right side
    276,333.01x = 59,283,256,406.75
  5. Step 5: Solve for x
    x = 59,283,256,406.75/276,333.01
  6. Step 6: Final answer
    x = 214,535.56

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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.