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Finding the Fourth Proportional to 219,219.20, 328,828.80 and 174,604.40

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Solution

The fourth proportional to 219,219.20, 328,828.80 and 174,604.40 is: 261,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,219.20 : 328,828.80 = 174,604.40 : x
  2. Step 2: Convert to fraction form
    219,219.20/328,828.80 = 174,604.40/x
  3. Step 3: Cross multiply
    219,219.20x = 328,828.80 × 174,604.40
  4. Step 4: Simplify right side
    219,219.20x = 57,414,955,326.72
  5. Step 5: Solve for x
    x = 57,414,955,326.72/219,219.20
  6. Step 6: Final answer
    x = 261,906.60

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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.