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Finding the Fourth Proportional to 388,951.26, 536,752.60 and 210,103.26

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Solution

The fourth proportional to 388,951.26, 536,752.60 and 210,103.26 is: 289,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,951.26 : 536,752.60 = 210,103.26 : x
  2. Step 2: Convert to fraction form
    388,951.26/536,752.60 = 210,103.26/x
  3. Step 3: Cross multiply
    388,951.26x = 536,752.60 × 210,103.26
  4. Step 4: Simplify right side
    388,951.26x = 112,773,471,073.48
  5. Step 5: Solve for x
    x = 112,773,471,073.48/388,951.26
  6. Step 6: Final answer
    x = 289,942.42

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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.