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Finding the Fourth Proportional to 226,990.37, 312,969.17 and 141,959.81

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Solution

The fourth proportional to 226,990.37, 312,969.17 and 141,959.81 is: 195,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,990.37 : 312,969.17 = 141,959.81 : x
  2. Step 2: Convert to fraction form
    226,990.37/312,969.17 = 141,959.81/x
  3. Step 3: Cross multiply
    226,990.37x = 312,969.17 × 141,959.81
  4. Step 4: Simplify right side
    226,990.37x = 44,429,045,046.38
  5. Step 5: Solve for x
    x = 44,429,045,046.38/226,990.37
  6. Step 6: Final answer
    x = 195,730.97

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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.