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Finding the Fourth Proportional to 354,593.33, 489,336.47 and 201,631.53

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Solution

The fourth proportional to 354,593.33, 489,336.47 and 201,631.53 is: 278,250.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,593.33 : 489,336.47 = 201,631.53 : x
  2. Step 2: Convert to fraction form
    354,593.33/489,336.47 = 201,631.53/x
  3. Step 3: Cross multiply
    354,593.33x = 489,336.47 × 201,631.53
  4. Step 4: Simplify right side
    354,593.33x = 98,665,662,858.32
  5. Step 5: Solve for x
    x = 98,665,662,858.32/354,593.33
  6. Step 6: Final answer
    x = 278,250.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.