Home / 219,667.75-329,375.45-86,475.33

Finding the Fourth Proportional to 219,667.75, 329,375.45 and 86,475.33

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Solution

The fourth proportional to 219,667.75, 329,375.45 and 86,475.33 is: 129,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,667.75 : 329,375.45 = 86,475.33 : x
  2. Step 2: Convert to fraction form
    219,667.75/329,375.45 = 86,475.33/x
  3. Step 3: Cross multiply
    219,667.75x = 329,375.45 × 86,475.33
  4. Step 4: Simplify right side
    219,667.75x = 28,482,850,948.84
  5. Step 5: Solve for x
    x = 28,482,850,948.84/219,667.75
  6. Step 6: Final answer
    x = 129,663.33

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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.