Home / 217,910.30-300,744.23-122,417.10

Finding the Fourth Proportional to 217,910.30, 300,744.23 and 122,417.10

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Solution

The fourth proportional to 217,910.30, 300,744.23 and 122,417.10 is: 168,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,910.30 : 300,744.23 = 122,417.10 : x
  2. Step 2: Convert to fraction form
    217,910.30/300,744.23 = 122,417.10/x
  3. Step 3: Cross multiply
    217,910.30x = 300,744.23 × 122,417.10
  4. Step 4: Simplify right side
    217,910.30x = 36,816,235,866.25
  5. Step 5: Solve for x
    x = 36,816,235,866.25/217,910.30
  6. Step 6: Final answer
    x = 168,951.34

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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.