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Finding the Fourth Proportional to 227,118.72, 313,423.68 and 131,680.80

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Solution

The fourth proportional to 227,118.72, 313,423.68 and 131,680.80 is: 181,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,118.72 : 313,423.68 = 131,680.80 : x
  2. Step 2: Convert to fraction form
    227,118.72/313,423.68 = 131,680.80/x
  3. Step 3: Cross multiply
    227,118.72x = 313,423.68 × 131,680.80
  4. Step 4: Simplify right side
    227,118.72x = 41,271,880,921.34
  5. Step 5: Solve for x
    x = 41,271,880,921.34/227,118.72
  6. Step 6: Final answer
    x = 181,719.41

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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.