Home / 354,914.82-489,763.26-201,948.48

Finding the Fourth Proportional to 354,914.82, 489,763.26 and 201,948.48

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Solution

The fourth proportional to 354,914.82, 489,763.26 and 201,948.48 is: 278,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,914.82 : 489,763.26 = 201,948.48 : x
  2. Step 2: Convert to fraction form
    354,914.82/489,763.26 = 201,948.48/x
  3. Step 3: Cross multiply
    354,914.82x = 489,763.26 × 201,948.48
  4. Step 4: Simplify right side
    354,914.82x = 98,906,945,916.84
  5. Step 5: Solve for x
    x = 98,906,945,916.84/354,914.82
  6. Step 6: Final answer
    x = 278,677.98

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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.