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Finding the Fourth Proportional to 200,535.69, 300,647.41 and 99,263.87

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Solution

The fourth proportional to 200,535.69, 300,647.41 and 99,263.87 is: 148,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,535.69 : 300,647.41 = 99,263.87 : x
  2. Step 2: Convert to fraction form
    200,535.69/300,647.41 = 99,263.87/x
  3. Step 3: Cross multiply
    200,535.69x = 300,647.41 × 99,263.87
  4. Step 4: Simplify right side
    200,535.69x = 29,843,424,422.30
  5. Step 5: Solve for x
    x = 29,843,424,422.30/200,535.69
  6. Step 6: Final answer
    x = 148,818.52

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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.