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Finding the Fourth Proportional to 412,525.50, 618,788.74 and 113,008.65

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Solution

The fourth proportional to 412,525.50, 618,788.74 and 113,008.65 is: 169,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,525.50 : 618,788.74 = 113,008.65 : x
  2. Step 2: Convert to fraction form
    412,525.50/618,788.74 = 113,008.65/x
  3. Step 3: Cross multiply
    412,525.50x = 618,788.74 × 113,008.65
  4. Step 4: Simplify right side
    412,525.50x = 69,928,480,142.60
  5. Step 5: Solve for x
    x = 69,928,480,142.60/412,525.50
  6. Step 6: Final answer
    x = 169,513.11

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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.