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Finding the Fourth Proportional to 284,007.93, 426,100.29 and 84,329.36

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Solution

The fourth proportional to 284,007.93, 426,100.29 and 84,329.36 is: 126,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,007.93 : 426,100.29 = 84,329.36 : x
  2. Step 2: Convert to fraction form
    284,007.93/426,100.29 = 84,329.36/x
  3. Step 3: Cross multiply
    284,007.93x = 426,100.29 × 84,329.36
  4. Step 4: Simplify right side
    284,007.93x = 35,932,764,751.51
  5. Step 5: Solve for x
    x = 35,932,764,751.51/284,007.93
  6. Step 6: Final answer
    x = 126,520.29

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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.