Home / 219,421.67-329,116.09-79,180.29

Finding the Fourth Proportional to 219,421.67, 329,116.09 and 79,180.29

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Solution

The fourth proportional to 219,421.67, 329,116.09 and 79,180.29 is: 118,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,421.67 : 329,116.09 = 79,180.29 : x
  2. Step 2: Convert to fraction form
    219,421.67/329,116.09 = 79,180.29/x
  3. Step 3: Cross multiply
    219,421.67x = 329,116.09 × 79,180.29
  4. Step 4: Simplify right side
    219,421.67x = 26,059,507,449.87
  5. Step 5: Solve for x
    x = 26,059,507,449.87/219,421.67
  6. Step 6: Final answer
    x = 118,764.51

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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.