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Finding the Fourth Proportional to 383,359.92, 529,015.44 and 211,272.24

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Solution

The fourth proportional to 383,359.92, 529,015.44 and 211,272.24 is: 291,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,359.92 : 529,015.44 = 211,272.24 : x
  2. Step 2: Convert to fraction form
    383,359.92/529,015.44 = 211,272.24/x
  3. Step 3: Cross multiply
    383,359.92x = 529,015.44 × 211,272.24
  4. Step 4: Simplify right side
    383,359.92x = 111,766,277,003.39
  5. Step 5: Solve for x
    x = 111,766,277,003.39/383,359.92
  6. Step 6: Final answer
    x = 291,543.98

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1.5x scale

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.