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Finding the Fourth Proportional to 219,122.40, 329,029.20 and 125,810.40

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Solution

The fourth proportional to 219,122.40, 329,029.20 and 125,810.40 is: 188,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,122.40 : 329,029.20 = 125,810.40 : x
  2. Step 2: Convert to fraction form
    219,122.40/329,029.20 = 125,810.40/x
  3. Step 3: Cross multiply
    219,122.40x = 329,029.20 × 125,810.40
  4. Step 4: Simplify right side
    219,122.40x = 41,395,295,263.68
  5. Step 5: Solve for x
    x = 41,395,295,263.68/219,122.40
  6. Step 6: Final answer
    x = 188,914.03

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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.