Home / 257,611.24-386,274.30-89,040.52

Finding the Fourth Proportional to 257,611.24, 386,274.30 and 89,040.52

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Solution

The fourth proportional to 257,611.24, 386,274.30 and 89,040.52 is: 133,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,611.24 : 386,274.30 = 89,040.52 : x
  2. Step 2: Convert to fraction form
    257,611.24/386,274.30 = 89,040.52/x
  3. Step 3: Cross multiply
    257,611.24x = 386,274.30 × 89,040.52
  4. Step 4: Simplify right side
    257,611.24x = 34,394,064,534.64
  5. Step 5: Solve for x
    x = 34,394,064,534.64/257,611.24
  6. Step 6: Final answer
    x = 133,511.51

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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.