Home / 419,635.20-629,515.36-149,742.32

Finding the Fourth Proportional to 419,635.20, 629,515.36 and 149,742.32

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Solution

The fourth proportional to 419,635.20, 629,515.36 and 149,742.32 is: 224,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,635.20 : 629,515.36 = 149,742.32 : x
  2. Step 2: Convert to fraction form
    419,635.20/629,515.36 = 149,742.32/x
  3. Step 3: Cross multiply
    419,635.20x = 629,515.36 × 149,742.32
  4. Step 4: Simplify right side
    419,635.20x = 94,265,090,482.04
  5. Step 5: Solve for x
    x = 94,265,090,482.04/419,635.20
  6. Step 6: Final answer
    x = 224,635.80

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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.