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Finding the Fourth Proportional to 329,134.12, 493,699.50 and 79,816.12

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Solution

The fourth proportional to 329,134.12, 493,699.50 and 79,816.12 is: 119,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,134.12 : 493,699.50 = 79,816.12 : x
  2. Step 2: Convert to fraction form
    329,134.12/493,699.50 = 79,816.12/x
  3. Step 3: Cross multiply
    329,134.12x = 493,699.50 × 79,816.12
  4. Step 4: Simplify right side
    329,134.12x = 39,405,178,535.94
  5. Step 5: Solve for x
    x = 39,405,178,535.94/329,134.12
  6. Step 6: Final answer
    x = 119,723.77

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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.