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Finding the Fourth Proportional to 422,665.18, 633,702.44 and 156,391.13

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Solution

The fourth proportional to 422,665.18, 633,702.44 and 156,391.13 is: 234,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,665.18 : 633,702.44 = 156,391.13 : x
  2. Step 2: Convert to fraction form
    422,665.18/633,702.44 = 156,391.13/x
  3. Step 3: Cross multiply
    422,665.18x = 633,702.44 × 156,391.13
  4. Step 4: Simplify right side
    422,665.18x = 99,105,442,650.59
  5. Step 5: Solve for x
    x = 99,105,442,650.59/422,665.18
  6. Step 6: Final answer
    x = 234,477.43

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1.5x scale

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.