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Finding the Fourth Proportional to 330,915.74, 496,316.48 and 87,758.50

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Solution

The fourth proportional to 330,915.74, 496,316.48 and 87,758.50 is: 131,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,915.74 : 496,316.48 = 87,758.50 : x
  2. Step 2: Convert to fraction form
    330,915.74/496,316.48 = 87,758.50/x
  3. Step 3: Cross multiply
    330,915.74x = 496,316.48 × 87,758.50
  4. Step 4: Simplify right side
    330,915.74x = 43,555,989,554.73
  5. Step 5: Solve for x
    x = 43,555,989,554.73/330,915.74
  6. Step 6: Final answer
    x = 131,622.60

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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.