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Finding the Fourth Proportional to 266,855.97, 368,263.95 and 145,994.61

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Solution

The fourth proportional to 266,855.97, 368,263.95 and 145,994.61 is: 201,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,855.97 : 368,263.95 = 145,994.61 : x
  2. Step 2: Convert to fraction form
    266,855.97/368,263.95 = 145,994.61/x
  3. Step 3: Cross multiply
    266,855.97x = 368,263.95 × 145,994.61
  4. Step 4: Simplify right side
    266,855.97x = 53,764,551,757.31
  5. Step 5: Solve for x
    x = 53,764,551,757.31/266,855.97
  6. Step 6: Final answer
    x = 201,474.05

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1.5x scale

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.