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Finding the Fourth Proportional to 266,887.77, 400,074.47 and 98,315.96

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Solution

The fourth proportional to 266,887.77, 400,074.47 and 98,315.96 is: 147,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,887.77 : 400,074.47 = 98,315.96 : x
  2. Step 2: Convert to fraction form
    266,887.77/400,074.47 = 98,315.96/x
  3. Step 3: Cross multiply
    266,887.77x = 400,074.47 × 98,315.96
  4. Step 4: Simplify right side
    266,887.77x = 39,333,703,097.59
  5. Step 5: Solve for x
    x = 39,333,703,097.59/266,887.77
  6. Step 6: Final answer
    x = 147,379.19

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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.