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Finding the Fourth Proportional to 219,902.80, 329,854.20 and 197,741.20

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Solution

The fourth proportional to 219,902.80, 329,854.20 and 197,741.20 is: 296,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,902.80 : 329,854.20 = 197,741.20 : x
  2. Step 2: Convert to fraction form
    219,902.80/329,854.20 = 197,741.20/x
  3. Step 3: Cross multiply
    219,902.80x = 329,854.20 × 197,741.20
  4. Step 4: Simplify right side
    219,902.80x = 65,225,765,333.04
  5. Step 5: Solve for x
    x = 65,225,765,333.04/219,902.80
  6. Step 6: Final answer
    x = 296,611.80

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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.