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Finding the Fourth Proportional to 322,180.42, 480,915.35 and 298,763.12

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Solution

The fourth proportional to 322,180.42, 480,915.35 and 298,763.12 is: 445,960.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,180.42 : 480,915.35 = 298,763.12 : x
  2. Step 2: Convert to fraction form
    322,180.42/480,915.35 = 298,763.12/x
  3. Step 3: Cross multiply
    322,180.42x = 480,915.35 × 298,763.12
  4. Step 4: Simplify right side
    322,180.42x = 143,679,770,421.89
  5. Step 5: Solve for x
    x = 143,679,770,421.89/322,180.42
  6. Step 6: Final answer
    x = 445,960.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.