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Finding the Fourth Proportional to 408,050.88, 612,075.52 and 108,531.79

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Solution

The fourth proportional to 408,050.88, 612,075.52 and 108,531.79 is: 162,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,050.88 : 612,075.52 = 108,531.79 : x
  2. Step 2: Convert to fraction form
    408,050.88/612,075.52 = 108,531.79/x
  3. Step 3: Cross multiply
    408,050.88x = 612,075.52 × 108,531.79
  4. Step 4: Simplify right side
    408,050.88x = 66,429,651,800.78
  5. Step 5: Solve for x
    x = 66,429,651,800.78/408,050.88
  6. Step 6: Final answer
    x = 162,797.47

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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.