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Finding the Fourth Proportional to 266,758.76, 368,121.88 and 145,899.66

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Solution

The fourth proportional to 266,758.76, 368,121.88 and 145,899.66 is: 201,338.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,758.76 : 368,121.88 = 145,899.66 : x
  2. Step 2: Convert to fraction form
    266,758.76/368,121.88 = 145,899.66/x
  3. Step 3: Cross multiply
    266,758.76x = 368,121.88 × 145,899.66
  4. Step 4: Simplify right side
    266,758.76x = 53,708,857,130.56
  5. Step 5: Solve for x
    x = 53,708,857,130.56/266,758.76
  6. Step 6: Final answer
    x = 201,338.68

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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.