Home / 276,281.15-381,267.42-155,422.52

Finding the Fourth Proportional to 276,281.15, 381,267.42 and 155,422.52

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Solution

The fourth proportional to 276,281.15, 381,267.42 and 155,422.52 is: 214,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,281.15 : 381,267.42 = 155,422.52 : x
  2. Step 2: Convert to fraction form
    276,281.15/381,267.42 = 155,422.52/x
  3. Step 3: Cross multiply
    276,281.15x = 381,267.42 × 155,422.52
  4. Step 4: Simplify right side
    276,281.15x = 59,257,541,303.96
  5. Step 5: Solve for x
    x = 59,257,541,303.96/276,281.15
  6. Step 6: Final answer
    x = 214,482.76

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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.