Home / 202,217.90-303,436.20-89,915.45

Finding the Fourth Proportional to 202,217.90, 303,436.20 and 89,915.45

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Solution

The fourth proportional to 202,217.90, 303,436.20 and 89,915.45 is: 134,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,217.90 : 303,436.20 = 89,915.45 : x
  2. Step 2: Convert to fraction form
    202,217.90/303,436.20 = 89,915.45/x
  3. Step 3: Cross multiply
    202,217.90x = 303,436.20 × 89,915.45
  4. Step 4: Simplify right side
    202,217.90x = 27,283,602,469.29
  5. Step 5: Solve for x
    x = 27,283,602,469.29/202,217.90
  6. Step 6: Final answer
    x = 134,921.80

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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.