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Finding the Fourth Proportional to 253,997.52, 380,947.74 and 127,602.68

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Solution

The fourth proportional to 253,997.52, 380,947.74 and 127,602.68 is: 191,379.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,997.52 : 380,947.74 = 127,602.68 : x
  2. Step 2: Convert to fraction form
    253,997.52/380,947.74 = 127,602.68/x
  3. Step 3: Cross multiply
    253,997.52x = 380,947.74 × 127,602.68
  4. Step 4: Simplify right side
    253,997.52x = 48,609,950,180.69
  5. Step 5: Solve for x
    x = 48,609,950,180.69/253,997.52
  6. Step 6: Final answer
    x = 191,379.63

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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.