Home / 219,749.40-329,624.10-163,980.90

Finding the Fourth Proportional to 219,749.40, 329,624.10 and 163,980.90

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Solution

The fourth proportional to 219,749.40, 329,624.10 and 163,980.90 is: 245,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,749.40 : 329,624.10 = 163,980.90 : x
  2. Step 2: Convert to fraction form
    219,749.40/329,624.10 = 163,980.90/x
  3. Step 3: Cross multiply
    219,749.40x = 329,624.10 × 163,980.90
  4. Step 4: Simplify right side
    219,749.40x = 54,052,056,579.69
  5. Step 5: Solve for x
    x = 54,052,056,579.69/219,749.40
  6. Step 6: Final answer
    x = 245,971.35

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Similar ratio
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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.