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Finding the Fourth Proportional to 383,670.83, 529,475.04 and 211,591.28

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Solution

The fourth proportional to 383,670.83, 529,475.04 and 211,591.28 is: 292,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,670.83 : 529,475.04 = 211,591.28 : x
  2. Step 2: Convert to fraction form
    383,670.83/529,475.04 = 211,591.28/x
  3. Step 3: Cross multiply
    383,670.83x = 529,475.04 × 211,591.28
  4. Step 4: Simplify right side
    383,670.83x = 112,032,302,765.34
  5. Step 5: Solve for x
    x = 112,032,302,765.34/383,670.83
  6. Step 6: Final answer
    x = 292,001.09

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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.