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Finding the Fourth Proportional to 219,928.60, 329,892.90 and 194,559.40

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Solution

The fourth proportional to 219,928.60, 329,892.90 and 194,559.40 is: 291,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,928.60 : 329,892.90 = 194,559.40 : x
  2. Step 2: Convert to fraction form
    219,928.60/329,892.90 = 194,559.40/x
  3. Step 3: Cross multiply
    219,928.60x = 329,892.90 × 194,559.40
  4. Step 4: Simplify right side
    219,928.60x = 64,183,764,688.26
  5. Step 5: Solve for x
    x = 64,183,764,688.26/219,928.60
  6. Step 6: Final answer
    x = 291,839.10

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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.