Home / 284,833.20-427,212.72-74,487.36

Finding the Fourth Proportional to 284,833.20, 427,212.72 and 74,487.36

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Solution

The fourth proportional to 284,833.20, 427,212.72 and 74,487.36 is: 111,721.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,833.20 : 427,212.72 = 74,487.36 : x
  2. Step 2: Convert to fraction form
    284,833.20/427,212.72 = 74,487.36/x
  3. Step 3: Cross multiply
    284,833.20x = 427,212.72 × 74,487.36
  4. Step 4: Simplify right side
    284,833.20x = 31,821,947,671.22
  5. Step 5: Solve for x
    x = 31,821,947,671.22/284,833.20
  6. Step 6: Final answer
    x = 111,721.34

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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.