Home / 219,823.60-329,079.30-131,031.40

Finding the Fourth Proportional to 219,823.60, 329,079.30 and 131,031.40

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Solution

The fourth proportional to 219,823.60, 329,079.30 and 131,031.40 is: 196,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,823.60 : 329,079.30 = 131,031.40 : x
  2. Step 2: Convert to fraction form
    219,823.60/329,079.30 = 131,031.40/x
  3. Step 3: Cross multiply
    219,823.60x = 329,079.30 × 131,031.40
  4. Step 4: Simplify right side
    219,823.60x = 43,119,721,390.02
  5. Step 5: Solve for x
    x = 43,119,721,390.02/219,823.60
  6. Step 6: Final answer
    x = 196,156.02

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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.