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Finding the Fourth Proportional to 253,488.40, 380,232.60 and 251,738.80

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Solution

The fourth proportional to 253,488.40, 380,232.60 and 251,738.80 is: 377,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,488.40 : 380,232.60 = 251,738.80 : x
  2. Step 2: Convert to fraction form
    253,488.40/380,232.60 = 251,738.80/x
  3. Step 3: Cross multiply
    253,488.40x = 380,232.60 × 251,738.80
  4. Step 4: Simplify right side
    253,488.40x = 95,719,298,444.88
  5. Step 5: Solve for x
    x = 95,719,298,444.88/253,488.40
  6. Step 6: Final answer
    x = 377,608.20

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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.