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Finding the Fourth Proportional to 276,458.72, 381,164.28 and 180,813.92

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Solution

The fourth proportional to 276,458.72, 381,164.28 and 180,813.92 is: 249,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,458.72 : 381,164.28 = 180,813.92 : x
  2. Step 2: Convert to fraction form
    276,458.72/381,164.28 = 180,813.92/x
  3. Step 3: Cross multiply
    276,458.72x = 381,164.28 × 180,813.92
  4. Step 4: Simplify right side
    276,458.72x = 68,919,807,630.78
  5. Step 5: Solve for x
    x = 68,919,807,630.78/276,458.72
  6. Step 6: Final answer
    x = 249,295.11

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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.