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Finding the Fourth Proportional to 217,543.30, 300,515.61 and 167,880.58

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Solution

The fourth proportional to 217,543.30, 300,515.61 and 167,880.58 is: 231,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,543.30 : 300,515.61 = 167,880.58 : x
  2. Step 2: Convert to fraction form
    217,543.30/300,515.61 = 167,880.58/x
  3. Step 3: Cross multiply
    217,543.30x = 300,515.61 × 167,880.58
  4. Step 4: Simplify right side
    217,543.30x = 50,450,734,905.85
  5. Step 5: Solve for x
    x = 50,450,734,905.85/217,543.30
  6. Step 6: Final answer
    x = 231,911.23

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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.