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Finding the Fourth Proportional to 219,184.40, 328,906.20 and 159,870.80

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Solution

The fourth proportional to 219,184.40, 328,906.20 and 159,870.80 is: 239,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,184.40 : 328,906.20 = 159,870.80 : x
  2. Step 2: Convert to fraction form
    219,184.40/328,906.20 = 159,870.80/x
  3. Step 3: Cross multiply
    219,184.40x = 328,906.20 × 159,870.80
  4. Step 4: Simplify right side
    219,184.40x = 52,582,497,318.96
  5. Step 5: Solve for x
    x = 52,582,497,318.96/219,184.40
  6. Step 6: Final answer
    x = 239,900.73

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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.