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Finding the Fourth Proportional to 408,989.27, 564,259.12 and 236,813.27

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Solution

The fourth proportional to 408,989.27, 564,259.12 and 236,813.27 is: 326,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,989.27 : 564,259.12 = 236,813.27 : x
  2. Step 2: Convert to fraction form
    408,989.27/564,259.12 = 236,813.27/x
  3. Step 3: Cross multiply
    408,989.27x = 564,259.12 × 236,813.27
  4. Step 4: Simplify right side
    408,989.27x = 133,624,043,921.19
  5. Step 5: Solve for x
    x = 133,624,043,921.19/408,989.27
  6. Step 6: Final answer
    x = 326,717.72

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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.