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Finding the Fourth Proportional to 266,854.97, 368,262.57 and 145,993.61

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Solution

The fourth proportional to 266,854.97, 368,262.57 and 145,993.61 is: 201,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,854.97 : 368,262.57 = 145,993.61 : x
  2. Step 2: Convert to fraction form
    266,854.97/368,262.57 = 145,993.61/x
  3. Step 3: Cross multiply
    266,854.97x = 368,262.57 × 145,993.61
  4. Step 4: Simplify right side
    266,854.97x = 53,763,982,022.18
  5. Step 5: Solve for x
    x = 53,763,982,022.18/266,854.97
  6. Step 6: Final answer
    x = 201,472.67

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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.