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Finding the Fourth Proportional to 199,505.70, 275,280.15 and 118,940.66

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Solution

The fourth proportional to 199,505.70, 275,280.15 and 118,940.66 is: 164,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,505.70 : 275,280.15 = 118,940.66 : x
  2. Step 2: Convert to fraction form
    199,505.70/275,280.15 = 118,940.66/x
  3. Step 3: Cross multiply
    199,505.70x = 275,280.15 × 118,940.66
  4. Step 4: Simplify right side
    199,505.70x = 32,742,002,725.90
  5. Step 5: Solve for x
    x = 32,742,002,725.90/199,505.70
  6. Step 6: Final answer
    x = 164,115.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.