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Finding the Fourth Proportional to 266,474.83, 367,740.08 and 145,621.21

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Solution

The fourth proportional to 266,474.83, 367,740.08 and 145,621.21 is: 200,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,474.83 : 367,740.08 = 145,621.21 : x
  2. Step 2: Convert to fraction form
    266,474.83/367,740.08 = 145,621.21/x
  3. Step 3: Cross multiply
    266,474.83x = 367,740.08 × 145,621.21
  4. Step 4: Simplify right side
    266,474.83x = 53,550,754,593.67
  5. Step 5: Solve for x
    x = 53,550,754,593.67/266,474.83
  6. Step 6: Final answer
    x = 200,959.90

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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.