Home / 219,120.12-302,394.78-123,626.34

Finding the Fourth Proportional to 219,120.12, 302,394.78 and 123,626.34

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Solution

The fourth proportional to 219,120.12, 302,394.78 and 123,626.34 is: 170,609.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,120.12 : 302,394.78 = 123,626.34 : x
  2. Step 2: Convert to fraction form
    219,120.12/302,394.78 = 123,626.34/x
  3. Step 3: Cross multiply
    219,120.12x = 302,394.78 × 123,626.34
  4. Step 4: Simplify right side
    219,120.12x = 37,383,959,886.51
  5. Step 5: Solve for x
    x = 37,383,959,886.51/219,120.12
  6. Step 6: Final answer
    x = 170,609.44

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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.