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Finding the Fourth Proportional to 219,165.20, 328,747.80 and 166,677.20

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Solution

The fourth proportional to 219,165.20, 328,747.80 and 166,677.20 is: 250,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,165.20 : 328,747.80 = 166,677.20 : x
  2. Step 2: Convert to fraction form
    219,165.20/328,747.80 = 166,677.20/x
  3. Step 3: Cross multiply
    219,165.20x = 328,747.80 × 166,677.20
  4. Step 4: Simplify right side
    219,165.20x = 54,794,762,810.16
  5. Step 5: Solve for x
    x = 54,794,762,810.16/219,165.20
  6. Step 6: Final answer
    x = 250,015.80

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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.