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Finding the Fourth Proportional to 330,693.42, 496,260.72 and 212,449.62

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Solution

The fourth proportional to 330,693.42, 496,260.72 and 212,449.62 is: 318,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,693.42 : 496,260.72 = 212,449.62 : x
  2. Step 2: Convert to fraction form
    330,693.42/496,260.72 = 212,449.62/x
  3. Step 3: Cross multiply
    330,693.42x = 496,260.72 × 212,449.62
  4. Step 4: Simplify right side
    330,693.42x = 105,430,401,384.93
  5. Step 5: Solve for x
    x = 105,430,401,384.93/330,693.42
  6. Step 6: Final answer
    x = 318,816.15

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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.