Home / 266,787.36-400,080.60-108,931.32

Finding the Fourth Proportional to 266,787.36, 400,080.60 and 108,931.32

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Solution

The fourth proportional to 266,787.36, 400,080.60 and 108,931.32 is: 163,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,787.36 : 400,080.60 = 108,931.32 : x
  2. Step 2: Convert to fraction form
    266,787.36/400,080.60 = 108,931.32/x
  3. Step 3: Cross multiply
    266,787.36x = 400,080.60 × 108,931.32
  4. Step 4: Simplify right side
    266,787.36x = 43,581,307,864.39
  5. Step 5: Solve for x
    x = 43,581,307,864.39/266,787.36
  6. Step 6: Final answer
    x = 163,355.97

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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.