Home / 276,576.12-381,677.76-155,693.88

Finding the Fourth Proportional to 276,576.12, 381,677.76 and 155,693.88

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Solution

The fourth proportional to 276,576.12, 381,677.76 and 155,693.88 is: 214,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,576.12 : 381,677.76 = 155,693.88 : x
  2. Step 2: Convert to fraction form
    276,576.12/381,677.76 = 155,693.88/x
  3. Step 3: Cross multiply
    276,576.12x = 381,677.76 × 155,693.88
  4. Step 4: Simplify right side
    276,576.12x = 59,424,891,364.11
  5. Step 5: Solve for x
    x = 59,424,891,364.11/276,576.12
  6. Step 6: Final answer
    x = 214,859.08

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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.