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Finding the Fourth Proportional to 253,887.35, 380,754.35 and 76,347.23

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Solution

The fourth proportional to 253,887.35, 380,754.35 and 76,347.23 is: 114,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,887.35 : 380,754.35 = 76,347.23 : x
  2. Step 2: Convert to fraction form
    253,887.35/380,754.35 = 76,347.23/x
  3. Step 3: Cross multiply
    253,887.35x = 380,754.35 × 76,347.23
  4. Step 4: Simplify right side
    253,887.35x = 29,069,537,647.44
  5. Step 5: Solve for x
    x = 29,069,537,647.44/253,887.35
  6. Step 6: Final answer
    x = 114,497.78

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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.