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Finding the Fourth Proportional to 303,305.60, 454,915.20 and 103,635.20

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Solution

The fourth proportional to 303,305.60, 454,915.20 and 103,635.20 is: 155,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,305.60 : 454,915.20 = 103,635.20 : x
  2. Step 2: Convert to fraction form
    303,305.60/454,915.20 = 103,635.20/x
  3. Step 3: Cross multiply
    303,305.60x = 454,915.20 × 103,635.20
  4. Step 4: Simplify right side
    303,305.60x = 47,145,227,735.04
  5. Step 5: Solve for x
    x = 47,145,227,735.04/303,305.60
  6. Step 6: Final answer
    x = 155,438.04

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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.