Home / 253,113-379,732.98-75,619.32

Finding the Fourth Proportional to 253,113, 379,732.98 and 75,619.32

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Solution

The fourth proportional to 253,113, 379,732.98 and 75,619.32 is: 113,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,113 : 379,732.98 = 75,619.32 : x
  2. Step 2: Convert to fraction form
    253,113/379,732.98 = 75,619.32/x
  3. Step 3: Cross multiply
    253,113x = 379,732.98 × 75,619.32
  4. Step 4: Simplify right side
    253,113x = 28,715,149,729.17
  5. Step 5: Solve for x
    x = 28,715,149,729.17/253,113
  6. Step 6: Final answer
    x = 113,447.95

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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.