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Finding the Fourth Proportional to 354,592.25, 489,317.37 and 201,667.64

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Solution

The fourth proportional to 354,592.25, 489,317.37 and 201,667.64 is: 278,290.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,592.25 : 489,317.37 = 201,667.64 : x
  2. Step 2: Convert to fraction form
    354,592.25/489,317.37 = 201,667.64/x
  3. Step 3: Cross multiply
    354,592.25x = 489,317.37 × 201,667.64
  4. Step 4: Simplify right side
    354,592.25x = 98,679,476,772.32
  5. Step 5: Solve for x
    x = 98,679,476,772.32/354,592.25
  6. Step 6: Final answer
    x = 278,290.00

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1.5x scale

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.