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Finding the Fourth Proportional to 206,816.15, 310,224.23 and 135,957.35

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Solution

The fourth proportional to 206,816.15, 310,224.23 and 135,957.35 is: 203,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,816.15 : 310,224.23 = 135,957.35 : x
  2. Step 2: Convert to fraction form
    206,816.15/310,224.23 = 135,957.35/x
  3. Step 3: Cross multiply
    206,816.15x = 310,224.23 × 135,957.35
  4. Step 4: Simplify right side
    206,816.15x = 42,177,264,216.59
  5. Step 5: Solve for x
    x = 42,177,264,216.59/206,816.15
  6. Step 6: Final answer
    x = 203,936.03

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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.