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Finding the Fourth Proportional to 284,166.33, 426,320.11 and 84,486.39

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Solution

The fourth proportional to 284,166.33, 426,320.11 and 84,486.39 is: 126,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,166.33 : 426,320.11 = 84,486.39 : x
  2. Step 2: Convert to fraction form
    284,166.33/426,320.11 = 84,486.39/x
  3. Step 3: Cross multiply
    284,166.33x = 426,320.11 × 84,486.39
  4. Step 4: Simplify right side
    284,166.33x = 36,018,247,983.26
  5. Step 5: Solve for x
    x = 36,018,247,983.26/284,166.33
  6. Step 6: Final answer
    x = 126,750.58

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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.