Home / 254,915.20-382,361.60-77,418.24

Finding the Fourth Proportional to 254,915.20, 382,361.60 and 77,418.24

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Solution

The fourth proportional to 254,915.20, 382,361.60 and 77,418.24 is: 116,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,915.20 : 382,361.60 = 77,418.24 : x
  2. Step 2: Convert to fraction form
    254,915.20/382,361.60 = 77,418.24/x
  3. Step 3: Cross multiply
    254,915.20x = 382,361.60 × 77,418.24
  4. Step 4: Simplify right side
    254,915.20x = 29,601,762,115.58
  5. Step 5: Solve for x
    x = 29,601,762,115.58/254,915.20
  6. Step 6: Final answer
    x = 116,123.96

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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.