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Finding the Fourth Proportional to 266,790.84, 400,186.96 and 109,019.32

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Solution

The fourth proportional to 266,790.84, 400,186.96 and 109,019.32 is: 163,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,790.84 : 400,186.96 = 109,019.32 : x
  2. Step 2: Convert to fraction form
    266,790.84/400,186.96 = 109,019.32/x
  3. Step 3: Cross multiply
    266,790.84x = 400,186.96 × 109,019.32
  4. Step 4: Simplify right side
    266,790.84x = 43,628,110,252.07
  5. Step 5: Solve for x
    x = 43,628,110,252.07/266,790.84
  6. Step 6: Final answer
    x = 163,529.27

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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.