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Finding the Fourth Proportional to 220,512.70, 330,428.85 and 164,088.10

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Solution

The fourth proportional to 220,512.70, 330,428.85 and 164,088.10 is: 245,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,512.70 : 330,428.85 = 164,088.10 : x
  2. Step 2: Convert to fraction form
    220,512.70/330,428.85 = 164,088.10/x
  3. Step 3: Cross multiply
    220,512.70x = 330,428.85 × 164,088.10
  4. Step 4: Simplify right side
    220,512.70x = 54,219,442,181.69
  5. Step 5: Solve for x
    x = 54,219,442,181.69/220,512.70
  6. Step 6: Final answer
    x = 245,879.00

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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.