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Finding the Fourth Proportional to 268,273.77, 402,410.73 and 99,772.08

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Solution

The fourth proportional to 268,273.77, 402,410.73 and 99,772.08 is: 149,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,273.77 : 402,410.73 = 99,772.08 : x
  2. Step 2: Convert to fraction form
    268,273.77/402,410.73 = 99,772.08/x
  3. Step 3: Cross multiply
    268,273.77x = 402,410.73 × 99,772.08
  4. Step 4: Simplify right side
    268,273.77x = 40,149,355,546.42
  5. Step 5: Solve for x
    x = 40,149,355,546.42/268,273.77
  6. Step 6: Final answer
    x = 149,658.15

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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.