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Finding the Fourth Proportional to 266,509.22, 399,805.37 and 159,868.11

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Solution

The fourth proportional to 266,509.22, 399,805.37 and 159,868.11 is: 239,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,509.22 : 399,805.37 = 159,868.11 : x
  2. Step 2: Convert to fraction form
    266,509.22/399,805.37 = 159,868.11/x
  3. Step 3: Cross multiply
    266,509.22x = 399,805.37 × 159,868.11
  4. Step 4: Simplify right side
    266,509.22x = 63,916,127,170.65
  5. Step 5: Solve for x
    x = 63,916,127,170.65/266,509.22
  6. Step 6: Final answer
    x = 239,827.08

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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.