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Finding the Fourth Proportional to 266,378.71, 399,725.70 and 98,017.27

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Solution

The fourth proportional to 266,378.71, 399,725.70 and 98,017.27 is: 147,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,378.71 : 399,725.70 = 98,017.27 : x
  2. Step 2: Convert to fraction form
    266,378.71/399,725.70 = 98,017.27/x
  3. Step 3: Cross multiply
    266,378.71x = 399,725.70 × 98,017.27
  4. Step 4: Simplify right side
    266,378.71x = 39,180,021,231.09
  5. Step 5: Solve for x
    x = 39,180,021,231.09/266,378.71
  6. Step 6: Final answer
    x = 147,083.91

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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.