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Finding the Fourth Proportional to 438,199.97, 657,372.60 and 153,816.73

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Solution

The fourth proportional to 438,199.97, 657,372.60 and 153,816.73 is: 230,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,199.97 : 657,372.60 = 153,816.73 : x
  2. Step 2: Convert to fraction form
    438,199.97/657,372.60 = 153,816.73/x
  3. Step 3: Cross multiply
    438,199.97x = 657,372.60 × 153,816.73
  4. Step 4: Simplify right side
    438,199.97x = 101,114,903,723.60
  5. Step 5: Solve for x
    x = 101,114,903,723.60/438,199.97
  6. Step 6: Final answer
    x = 230,750.59

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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.