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Finding the Fourth Proportional to 483,253.30, 666,867.96 and 289,767.80

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Solution

The fourth proportional to 483,253.30, 666,867.96 and 289,767.80 is: 399,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,253.30 : 666,867.96 = 289,767.80 : x
  2. Step 2: Convert to fraction form
    483,253.30/666,867.96 = 289,767.80/x
  3. Step 3: Cross multiply
    483,253.30x = 666,867.96 × 289,767.80
  4. Step 4: Simplify right side
    483,253.30x = 193,236,861,659.69
  5. Step 5: Solve for x
    x = 193,236,861,659.69/483,253.30
  6. Step 6: Final answer
    x = 399,866.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.