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Finding the Fourth Proportional to 331,379.60, 497,152.20 and 106,761.20

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Solution

The fourth proportional to 331,379.60, 497,152.20 and 106,761.20 is: 160,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,379.60 : 497,152.20 = 106,761.20 : x
  2. Step 2: Convert to fraction form
    331,379.60/497,152.20 = 106,761.20/x
  3. Step 3: Cross multiply
    331,379.60x = 497,152.20 × 106,761.20
  4. Step 4: Simplify right side
    331,379.60x = 53,076,565,454.64
  5. Step 5: Solve for x
    x = 53,076,565,454.64/331,379.60
  6. Step 6: Final answer
    x = 160,168.48

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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.