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Finding the Fourth Proportional to 518,339.43, 777,574.89 and 202,755.33

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Solution

The fourth proportional to 518,339.43, 777,574.89 and 202,755.33 is: 304,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,339.43 : 777,574.89 = 202,755.33 : x
  2. Step 2: Convert to fraction form
    518,339.43/777,574.89 = 202,755.33/x
  3. Step 3: Cross multiply
    518,339.43x = 777,574.89 × 202,755.33
  4. Step 4: Simplify right side
    518,339.43x = 157,657,453,421.66
  5. Step 5: Solve for x
    x = 157,657,453,421.66/518,339.43
  6. Step 6: Final answer
    x = 304,158.71

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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.