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Finding the Fourth Proportional to 276,610.59, 381,702.92 and 155,758.59

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Solution

The fourth proportional to 276,610.59, 381,702.92 and 155,758.59 is: 214,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,610.59 : 381,702.92 = 155,758.59 : x
  2. Step 2: Convert to fraction form
    276,610.59/381,702.92 = 155,758.59/x
  3. Step 3: Cross multiply
    276,610.59x = 381,702.92 × 155,758.59
  4. Step 4: Simplify right side
    276,610.59x = 59,453,507,839.29
  5. Step 5: Solve for x
    x = 59,453,507,839.29/276,610.59
  6. Step 6: Final answer
    x = 214,935.76

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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.