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Finding the Fourth Proportional to 254,378.48, 381,575.84 and 127,949.67

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Solution

The fourth proportional to 254,378.48, 381,575.84 and 127,949.67 is: 191,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,378.48 : 381,575.84 = 127,949.67 : x
  2. Step 2: Convert to fraction form
    254,378.48/381,575.84 = 127,949.67/x
  3. Step 3: Cross multiply
    254,378.48x = 381,575.84 × 127,949.67
  4. Step 4: Simplify right side
    254,378.48x = 48,822,502,168.22
  5. Step 5: Solve for x
    x = 48,822,502,168.22/254,378.48
  6. Step 6: Final answer
    x = 191,928.59

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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.