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Finding the Fourth Proportional to 219,622.60, 328,704.90 and 159,480.10

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Solution

The fourth proportional to 219,622.60, 328,704.90 and 159,480.10 is: 238,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,622.60 : 328,704.90 = 159,480.10 : x
  2. Step 2: Convert to fraction form
    219,622.60/328,704.90 = 159,480.10/x
  3. Step 3: Cross multiply
    219,622.60x = 328,704.90 × 159,480.10
  4. Step 4: Simplify right side
    219,622.60x = 52,421,890,322.49
  5. Step 5: Solve for x
    x = 52,421,890,322.49/219,622.60
  6. Step 6: Final answer
    x = 238,690.78

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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.