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Finding the Fourth Proportional to 231,602.00, 319,537.90 and 129,611.25

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Solution

The fourth proportional to 231,602.00, 319,537.90 and 129,611.25 is: 178,822.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,602.00 : 319,537.90 = 129,611.25 : x
  2. Step 2: Convert to fraction form
    231,602.00/319,537.90 = 129,611.25/x
  3. Step 3: Cross multiply
    231,602.00x = 319,537.90 × 129,611.25
  4. Step 4: Simplify right side
    231,602.00x = 41,415,707,037.99
  5. Step 5: Solve for x
    x = 41,415,707,037.99/231,602.00
  6. Step 6: Final answer
    x = 178,822.75

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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.