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Finding the Fourth Proportional to 284,435.20, 426,361.20 and 166,045.60

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Solution

The fourth proportional to 284,435.20, 426,361.20 and 166,045.60 is: 248,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,435.20 : 426,361.20 = 166,045.60 : x
  2. Step 2: Convert to fraction form
    284,435.20/426,361.20 = 166,045.60/x
  3. Step 3: Cross multiply
    284,435.20x = 426,361.20 × 166,045.60
  4. Step 4: Simplify right side
    284,435.20x = 70,795,401,270.72
  5. Step 5: Solve for x
    x = 70,795,401,270.72/284,435.20
  6. Step 6: Final answer
    x = 248,898.17

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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.