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Finding the Fourth Proportional to 383,350.79, 529,027.72 and 211,275.03

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Solution

The fourth proportional to 383,350.79, 529,027.72 and 211,275.03 is: 291,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,350.79 : 529,027.72 = 211,275.03 : x
  2. Step 2: Convert to fraction form
    383,350.79/529,027.72 = 211,275.03/x
  3. Step 3: Cross multiply
    383,350.79x = 529,027.72 × 211,275.03
  4. Step 4: Simplify right side
    383,350.79x = 111,770,346,885.64
  5. Step 5: Solve for x
    x = 111,770,346,885.64/383,350.79
  6. Step 6: Final answer
    x = 291,561.54

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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.