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Finding the Fourth Proportional to 226,288.89, 312,334.79 and 130,781.79

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Solution

The fourth proportional to 226,288.89, 312,334.79 and 130,781.79 is: 180,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,288.89 : 312,334.79 = 130,781.79 : x
  2. Step 2: Convert to fraction form
    226,288.89/312,334.79 = 130,781.79/x
  3. Step 3: Cross multiply
    226,288.89x = 312,334.79 × 130,781.79
  4. Step 4: Simplify right side
    226,288.89x = 40,847,702,261.57
  5. Step 5: Solve for x
    x = 40,847,702,261.57/226,288.89
  6. Step 6: Final answer
    x = 180,511.30

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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.