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Finding the Fourth Proportional to 283,855.25, 391,702.37 and 162,911.42

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Solution

The fourth proportional to 283,855.25, 391,702.37 and 162,911.42 is: 224,807.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,855.25 : 391,702.37 = 162,911.42 : x
  2. Step 2: Convert to fraction form
    283,855.25/391,702.37 = 162,911.42/x
  3. Step 3: Cross multiply
    283,855.25x = 391,702.37 × 162,911.42
  4. Step 4: Simplify right side
    283,855.25x = 63,812,786,541.00
  5. Step 5: Solve for x
    x = 63,812,786,541.00/283,855.25
  6. Step 6: Final answer
    x = 224,807.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.