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Finding the Fourth Proportional to 288,123.78, 397,560.87 and 167,237.94

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Solution

The fourth proportional to 288,123.78, 397,560.87 and 167,237.94 is: 230,759.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,123.78 : 397,560.87 = 167,237.94 : x
  2. Step 2: Convert to fraction form
    288,123.78/397,560.87 = 167,237.94/x
  3. Step 3: Cross multiply
    288,123.78x = 397,560.87 × 167,237.94
  4. Step 4: Simplify right side
    288,123.78x = 66,487,260,923.41
  5. Step 5: Solve for x
    x = 66,487,260,923.41/288,123.78
  6. Step 6: Final answer
    x = 230,759.37

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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.