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Finding the Fourth Proportional to 281,555.86, 422,289.78 and 92,014.72

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Solution

The fourth proportional to 281,555.86, 422,289.78 and 92,014.72 is: 138,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,555.86 : 422,289.78 = 92,014.72 : x
  2. Step 2: Convert to fraction form
    281,555.86/422,289.78 = 92,014.72/x
  3. Step 3: Cross multiply
    281,555.86x = 422,289.78 × 92,014.72
  4. Step 4: Simplify right side
    281,555.86x = 38,856,875,865.56
  5. Step 5: Solve for x
    x = 38,856,875,865.56/281,555.86
  6. Step 6: Final answer
    x = 138,007.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.