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Finding the Fourth Proportional to 293,279.76, 404,908.92 and 225,161.08

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Solution

The fourth proportional to 293,279.76, 404,908.92 and 225,161.08 is: 310,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,279.76 : 404,908.92 = 225,161.08 : x
  2. Step 2: Convert to fraction form
    293,279.76/404,908.92 = 225,161.08/x
  3. Step 3: Cross multiply
    293,279.76x = 404,908.92 × 225,161.08
  4. Step 4: Simplify right side
    293,279.76x = 91,169,729,728.83
  5. Step 5: Solve for x
    x = 91,169,729,728.83/293,279.76
  6. Step 6: Final answer
    x = 310,862.67

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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.