Home / 219,822.60-329,077.80-131,030.40

Finding the Fourth Proportional to 219,822.60, 329,077.80 and 131,030.40

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Solution

The fourth proportional to 219,822.60, 329,077.80 and 131,030.40 is: 196,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,822.60 : 329,077.80 = 131,030.40 : x
  2. Step 2: Convert to fraction form
    219,822.60/329,077.80 = 131,030.40/x
  3. Step 3: Cross multiply
    219,822.60x = 329,077.80 × 131,030.40
  4. Step 4: Simplify right side
    219,822.60x = 43,119,195,765.12
  5. Step 5: Solve for x
    x = 43,119,195,765.12/219,822.60
  6. Step 6: Final answer
    x = 196,154.52

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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.