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Finding the Fourth Proportional to 231,485.67, 319,559.42 and 174,146.87

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Solution

The fourth proportional to 231,485.67, 319,559.42 and 174,146.87 is: 240,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,485.67 : 319,559.42 = 174,146.87 : x
  2. Step 2: Convert to fraction form
    231,485.67/319,559.42 = 174,146.87/x
  3. Step 3: Cross multiply
    231,485.67x = 319,559.42 × 174,146.87
  4. Step 4: Simplify right side
    231,485.67x = 55,650,274,006.28
  5. Step 5: Solve for x
    x = 55,650,274,006.28/231,485.67
  6. Step 6: Final answer
    x = 240,404.83

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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.