Home / 284,834.40-427,219.20-74,493.60

Finding the Fourth Proportional to 284,834.40, 427,219.20 and 74,493.60

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Solution

The fourth proportional to 284,834.40, 427,219.20 and 74,493.60 is: 111,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,834.40 : 427,219.20 = 74,493.60 : x
  2. Step 2: Convert to fraction form
    284,834.40/427,219.20 = 74,493.60/x
  3. Step 3: Cross multiply
    284,834.40x = 427,219.20 × 74,493.60
  4. Step 4: Simplify right side
    284,834.40x = 31,825,096,197.12
  5. Step 5: Solve for x
    x = 31,825,096,197.12/284,834.40
  6. Step 6: Final answer
    x = 111,731.93

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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.