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Finding the Fourth Proportional to 469,919.88, 648,472.06 and 255,055.37

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Solution

The fourth proportional to 469,919.88, 648,472.06 and 255,055.37 is: 351,966.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,919.88 : 648,472.06 = 255,055.37 : x
  2. Step 2: Convert to fraction form
    469,919.88/648,472.06 = 255,055.37/x
  3. Step 3: Cross multiply
    469,919.88x = 648,472.06 × 255,055.37
  4. Step 4: Simplify right side
    469,919.88x = 165,396,278,274.42
  5. Step 5: Solve for x
    x = 165,396,278,274.42/469,919.88
  6. Step 6: Final answer
    x = 351,966.97

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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.