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Finding the Fourth Proportional to 201,563.80, 278,152.15 and 110,919.73

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Solution

The fourth proportional to 201,563.80, 278,152.15 and 110,919.73 is: 153,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,563.80 : 278,152.15 = 110,919.73 : x
  2. Step 2: Convert to fraction form
    201,563.80/278,152.15 = 110,919.73/x
  3. Step 3: Cross multiply
    201,563.80x = 278,152.15 × 110,919.73
  4. Step 4: Simplify right side
    201,563.80x = 30,852,561,376.92
  5. Step 5: Solve for x
    x = 30,852,561,376.92/201,563.80
  6. Step 6: Final answer
    x = 153,065.98

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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.