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Finding the Fourth Proportional to 262,369.90, 394,429.65 and 223,878.70

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Solution

The fourth proportional to 262,369.90, 394,429.65 and 223,878.70 is: 336,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,369.90 : 394,429.65 = 223,878.70 : x
  2. Step 2: Convert to fraction form
    262,369.90/394,429.65 = 223,878.70/x
  3. Step 3: Cross multiply
    262,369.90x = 394,429.65 × 223,878.70
  4. Step 4: Simplify right side
    262,369.90x = 88,304,397,283.46
  5. Step 5: Solve for x
    x = 88,304,397,283.46/262,369.90
  6. Step 6: Final answer
    x = 336,564.51

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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.