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Finding the Fourth Proportional to 226,008.76, 311,949.42 and 154,417.72

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Solution

The fourth proportional to 226,008.76, 311,949.42 and 154,417.72 is: 213,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,008.76 : 311,949.42 = 154,417.72 : x
  2. Step 2: Convert to fraction form
    226,008.76/311,949.42 = 154,417.72/x
  3. Step 3: Cross multiply
    226,008.76x = 311,949.42 × 154,417.72
  4. Step 4: Simplify right side
    226,008.76x = 48,170,518,191.72
  5. Step 5: Solve for x
    x = 48,170,518,191.72/226,008.76
  6. Step 6: Final answer
    x = 213,135.62

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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.