Home / 219,911.20-329,607.60-164,442.40

Finding the Fourth Proportional to 219,911.20, 329,607.60 and 164,442.40

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Solution

The fourth proportional to 219,911.20, 329,607.60 and 164,442.40 is: 246,469.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,911.20 : 329,607.60 = 164,442.40 : x
  2. Step 2: Convert to fraction form
    219,911.20/329,607.60 = 164,442.40/x
  3. Step 3: Cross multiply
    219,911.20x = 329,607.60 × 164,442.40
  4. Step 4: Simplify right side
    219,911.20x = 54,201,464,802.24
  5. Step 5: Solve for x
    x = 54,201,464,802.24/219,911.20
  6. Step 6: Final answer
    x = 246,469.78

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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.