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Finding the Fourth Proportional to 266,777.31, 400,166.65 and 109,005.76

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Solution

The fourth proportional to 266,777.31, 400,166.65 and 109,005.76 is: 163,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,777.31 : 400,166.65 = 109,005.76 : x
  2. Step 2: Convert to fraction form
    266,777.31/400,166.65 = 109,005.76/x
  3. Step 3: Cross multiply
    266,777.31x = 400,166.65 × 109,005.76
  4. Step 4: Simplify right side
    266,777.31x = 43,620,470,446.37
  5. Step 5: Solve for x
    x = 43,620,470,446.37/266,777.31
  6. Step 6: Final answer
    x = 163,508.92

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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.