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Finding the Fourth Proportional to 379,796.42, 569,694.64 and 99,311.24

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Solution

The fourth proportional to 379,796.42, 569,694.64 and 99,311.24 is: 148,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,796.42 : 569,694.64 = 99,311.24 : x
  2. Step 2: Convert to fraction form
    379,796.42/569,694.64 = 99,311.24/x
  3. Step 3: Cross multiply
    379,796.42x = 569,694.64 × 99,311.24
  4. Step 4: Simplify right side
    379,796.42x = 56,577,081,119.75
  5. Step 5: Solve for x
    x = 56,577,081,119.75/379,796.42
  6. Step 6: Final answer
    x = 148,966.86

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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.