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Finding the Fourth Proportional to 449,265.68, 619,989.64 and 245,318.02

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Solution

The fourth proportional to 449,265.68, 619,989.64 and 245,318.02 is: 338,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,265.68 : 619,989.64 = 245,318.02 : x
  2. Step 2: Convert to fraction form
    449,265.68/619,989.64 = 245,318.02/x
  3. Step 3: Cross multiply
    449,265.68x = 619,989.64 × 245,318.02
  4. Step 4: Simplify right side
    449,265.68x = 152,094,632,737.54
  5. Step 5: Solve for x
    x = 152,094,632,737.54/449,265.68
  6. Step 6: Final answer
    x = 338,540.51

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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.