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Finding the Fourth Proportional to 328,505.10, 492,757.65 and 223,529.10

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Solution

The fourth proportional to 328,505.10, 492,757.65 and 223,529.10 is: 335,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,505.10 : 492,757.65 = 223,529.10 : x
  2. Step 2: Convert to fraction form
    328,505.10/492,757.65 = 223,529.10/x
  3. Step 3: Cross multiply
    328,505.10x = 492,757.65 × 223,529.10
  4. Step 4: Simplify right side
    328,505.10x = 110,145,674,022.62
  5. Step 5: Solve for x
    x = 110,145,674,022.62/328,505.10
  6. Step 6: Final answer
    x = 335,293.65

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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.