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Finding the Fourth Proportional to 219,218.40, 329,173.20 and 125,906.40

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Solution

The fourth proportional to 219,218.40, 329,173.20 and 125,906.40 is: 189,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,218.40 : 329,173.20 = 125,906.40 : x
  2. Step 2: Convert to fraction form
    219,218.40/329,173.20 = 125,906.40/x
  3. Step 3: Cross multiply
    219,218.40x = 329,173.20 × 125,906.40
  4. Step 4: Simplify right side
    219,218.40x = 41,445,012,588.48
  5. Step 5: Solve for x
    x = 41,445,012,588.48/219,218.40
  6. Step 6: Final answer
    x = 189,058.09

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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.