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Finding the Fourth Proportional to 200,365.05, 300,070.53 and 115,947.26

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Solution

The fourth proportional to 200,365.05, 300,070.53 and 115,947.26 is: 173,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,365.05 : 300,070.53 = 115,947.26 : x
  2. Step 2: Convert to fraction form
    200,365.05/300,070.53 = 115,947.26/x
  3. Step 3: Cross multiply
    200,365.05x = 300,070.53 × 115,947.26
  4. Step 4: Simplify right side
    200,365.05x = 34,792,354,259.90
  5. Step 5: Solve for x
    x = 34,792,354,259.90/200,365.05
  6. Step 6: Final answer
    x = 173,644.83

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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.