Home / 219,828.40-329,742.60-131,254.90

Finding the Fourth Proportional to 219,828.40, 329,742.60 and 131,254.90

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Solution

The fourth proportional to 219,828.40, 329,742.60 and 131,254.90 is: 196,882.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,828.40 : 329,742.60 = 131,254.90 : x
  2. Step 2: Convert to fraction form
    219,828.40/329,742.60 = 131,254.90/x
  3. Step 3: Cross multiply
    219,828.40x = 329,742.60 × 131,254.90
  4. Step 4: Simplify right side
    219,828.40x = 43,280,331,988.74
  5. Step 5: Solve for x
    x = 43,280,331,988.74/219,828.40
  6. Step 6: Final answer
    x = 196,882.35

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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.