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Finding the Fourth Proportional to 266,906.09, 400,363.76 and 98,339.64

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Solution

The fourth proportional to 266,906.09, 400,363.76 and 98,339.64 is: 147,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,906.09 : 400,363.76 = 98,339.64 : x
  2. Step 2: Convert to fraction form
    266,906.09/400,363.76 = 98,339.64/x
  3. Step 3: Cross multiply
    266,906.09x = 400,363.76 × 98,339.64
  4. Step 4: Simplify right side
    266,906.09x = 39,371,627,535.75
  5. Step 5: Solve for x
    x = 39,371,627,535.75/266,906.09
  6. Step 6: Final answer
    x = 147,511.16

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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.