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Finding the Fourth Proportional to 253,003.77, 379,562.90 and 75,504.15

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Solution

The fourth proportional to 253,003.77, 379,562.90 and 75,504.15 is: 113,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,003.77 : 379,562.90 = 75,504.15 : x
  2. Step 2: Convert to fraction form
    253,003.77/379,562.90 = 75,504.15/x
  3. Step 3: Cross multiply
    253,003.77x = 379,562.90 × 75,504.15
  4. Step 4: Simplify right side
    253,003.77x = 28,658,573,758.51
  5. Step 5: Solve for x
    x = 28,658,573,758.51/253,003.77
  6. Step 6: Final answer
    x = 113,273.31

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1.5x scale

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.