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Finding the Fourth Proportional to 266,758.32, 368,121.29 and 145,899.23

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Solution

The fourth proportional to 266,758.32, 368,121.29 and 145,899.23 is: 201,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,758.32 : 368,121.29 = 145,899.23 : x
  2. Step 2: Convert to fraction form
    266,758.32/368,121.29 = 145,899.23/x
  3. Step 3: Cross multiply
    266,758.32x = 368,121.29 × 145,899.23
  4. Step 4: Simplify right side
    266,758.32x = 53,708,614,042.66
  5. Step 5: Solve for x
    x = 53,708,614,042.66/266,758.32
  6. Step 6: Final answer
    x = 201,338.10

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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.