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Finding the Fourth Proportional to 219,150.80, 328,770.86 and 99,150.11

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Solution

The fourth proportional to 219,150.80, 328,770.86 and 99,150.11 is: 148,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,150.80 : 328,770.86 = 99,150.11 : x
  2. Step 2: Convert to fraction form
    219,150.80/328,770.86 = 99,150.11/x
  3. Step 3: Cross multiply
    219,150.80x = 328,770.86 × 99,150.11
  4. Step 4: Simplify right side
    219,150.80x = 32,597,664,794.19
  5. Step 5: Solve for x
    x = 32,597,664,794.19/219,150.80
  6. Step 6: Final answer
    x = 148,745.36

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1.5x scale

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.