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Finding the Fourth Proportional to 219,323.60, 328,329.30 and 193,079.60

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Solution

The fourth proportional to 219,323.60, 328,329.30 and 193,079.60 is: 289,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,323.60 : 328,329.30 = 193,079.60 : x
  2. Step 2: Convert to fraction form
    219,323.60/328,329.30 = 193,079.60/x
  3. Step 3: Cross multiply
    219,323.60x = 328,329.30 × 193,079.60
  4. Step 4: Simplify right side
    219,323.60x = 63,393,689,912.28
  5. Step 5: Solve for x
    x = 63,393,689,912.28/219,323.60
  6. Step 6: Final answer
    x = 289,041.81

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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.