Home / 253,611.02-380,474.85-76,121.39

Finding the Fourth Proportional to 253,611.02, 380,474.85 and 76,121.39

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Solution

The fourth proportional to 253,611.02, 380,474.85 and 76,121.39 is: 114,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,611.02 : 380,474.85 = 76,121.39 : x
  2. Step 2: Convert to fraction form
    253,611.02/380,474.85 = 76,121.39/x
  3. Step 3: Cross multiply
    253,611.02x = 380,474.85 × 76,121.39
  4. Step 4: Simplify right side
    253,611.02x = 28,962,275,678.68
  5. Step 5: Solve for x
    x = 28,962,275,678.68/253,611.02
  6. Step 6: Final answer
    x = 114,199.59

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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.