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Finding the Fourth Proportional to 266,785.89, 400,179.51 and 109,014.32

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Solution

The fourth proportional to 266,785.89, 400,179.51 and 109,014.32 is: 163,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,785.89 : 400,179.51 = 109,014.32 : x
  2. Step 2: Convert to fraction form
    266,785.89/400,179.51 = 109,014.32/x
  3. Step 3: Cross multiply
    266,785.89x = 400,179.51 × 109,014.32
  4. Step 4: Simplify right side
    266,785.89x = 43,625,295,159.69
  5. Step 5: Solve for x
    x = 43,625,295,159.69/266,785.89
  6. Step 6: Final answer
    x = 163,521.75

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1.5x scale

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.