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Finding the Fourth Proportional to 220,146.40, 330,219.60 and 114,940.90

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Solution

The fourth proportional to 220,146.40, 330,219.60 and 114,940.90 is: 172,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,146.40 : 330,219.60 = 114,940.90 : x
  2. Step 2: Convert to fraction form
    220,146.40/330,219.60 = 114,940.90/x
  3. Step 3: Cross multiply
    220,146.40x = 330,219.60 × 114,940.90
  4. Step 4: Simplify right side
    220,146.40x = 37,955,738,021.64
  5. Step 5: Solve for x
    x = 37,955,738,021.64/220,146.40
  6. Step 6: Final answer
    x = 172,411.35

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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.