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Finding the Fourth Proportional to 223,470, 335,139.39 and 65,660.94

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Solution

The fourth proportional to 223,470, 335,139.39 and 65,660.94 is: 98,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,470 : 335,139.39 = 65,660.94 : x
  2. Step 2: Convert to fraction form
    223,470/335,139.39 = 65,660.94/x
  3. Step 3: Cross multiply
    223,470x = 335,139.39 × 65,660.94
  4. Step 4: Simplify right side
    223,470x = 22,005,567,378.43
  5. Step 5: Solve for x
    x = 22,005,567,378.43/223,470
  6. Step 6: Final answer
    x = 98,472.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.