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Finding the Fourth Proportional to 284,069.82, 426,153.95 and 126,310.58

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Solution

The fourth proportional to 284,069.82, 426,153.95 and 126,310.58 is: 189,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,069.82 : 426,153.95 = 126,310.58 : x
  2. Step 2: Convert to fraction form
    284,069.82/426,153.95 = 126,310.58/x
  3. Step 3: Cross multiply
    284,069.82x = 426,153.95 × 126,310.58
  4. Step 4: Simplify right side
    284,069.82x = 53,827,749,831.47
  5. Step 5: Solve for x
    x = 53,827,749,831.47/284,069.82
  6. Step 6: Final answer
    x = 189,487.75

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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.