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Finding the Fourth Proportional to 461,622.40, 691,915.20 and 195,337.60

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Solution

The fourth proportional to 461,622.40, 691,915.20 and 195,337.60 is: 292,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,622.40 : 691,915.20 = 195,337.60 : x
  2. Step 2: Convert to fraction form
    461,622.40/691,915.20 = 195,337.60/x
  3. Step 3: Cross multiply
    461,622.40x = 691,915.20 × 195,337.60
  4. Step 4: Simplify right side
    461,622.40x = 135,157,054,571.52
  5. Step 5: Solve for x
    x = 135,157,054,571.52/461,622.40
  6. Step 6: Final answer
    x = 292,787.04

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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.