Home / 303,306.10-454,915.95-103,635.70

Finding the Fourth Proportional to 303,306.10, 454,915.95 and 103,635.70

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Solution

The fourth proportional to 303,306.10, 454,915.95 and 103,635.70 is: 155,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,306.10 : 454,915.95 = 103,635.70 : x
  2. Step 2: Convert to fraction form
    303,306.10/454,915.95 = 103,635.70/x
  3. Step 3: Cross multiply
    303,306.10x = 454,915.95 × 103,635.70
  4. Step 4: Simplify right side
    303,306.10x = 47,145,532,919.42
  5. Step 5: Solve for x
    x = 47,145,532,919.42/303,306.10
  6. Step 6: Final answer
    x = 155,438.79

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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.