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Finding the Fourth Proportional to 219,396.60, 328,453.38 and 198,384.93

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Solution

The fourth proportional to 219,396.60, 328,453.38 and 198,384.93 is: 296,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,396.60 : 328,453.38 = 198,384.93 : x
  2. Step 2: Convert to fraction form
    219,396.60/328,453.38 = 198,384.93/x
  3. Step 3: Cross multiply
    219,396.60x = 328,453.38 × 198,384.93
  4. Step 4: Simplify right side
    219,396.60x = 65,160,200,799.56
  5. Step 5: Solve for x
    x = 65,160,200,799.56/219,396.60
  6. Step 6: Final answer
    x = 296,997.31

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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.