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Finding the Fourth Proportional to 379,550.78, 569,306.70 and 113,313.50

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Solution

The fourth proportional to 379,550.78, 569,306.70 and 113,313.50 is: 169,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,550.78 : 569,306.70 = 113,313.50 : x
  2. Step 2: Convert to fraction form
    379,550.78/569,306.70 = 113,313.50/x
  3. Step 3: Cross multiply
    379,550.78x = 569,306.70 × 113,313.50
  4. Step 4: Simplify right side
    379,550.78x = 64,510,134,750.45
  5. Step 5: Solve for x
    x = 64,510,134,750.45/379,550.78
  6. Step 6: Final answer
    x = 169,964.44

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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.