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Finding the Fourth Proportional to 404,706.09, 558,498.92 and 223,418.11

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Solution

The fourth proportional to 404,706.09, 558,498.92 and 223,418.11 is: 308,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,706.09 : 558,498.92 = 223,418.11 : x
  2. Step 2: Convert to fraction form
    404,706.09/558,498.92 = 223,418.11/x
  3. Step 3: Cross multiply
    404,706.09x = 558,498.92 × 223,418.11
  4. Step 4: Simplify right side
    404,706.09x = 124,778,773,143.44
  5. Step 5: Solve for x
    x = 124,778,773,143.44/404,706.09
  6. Step 6: Final answer
    x = 308,319.48

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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.