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Finding the Fourth Proportional to 254,199.88, 381,202.71 and 85,674.93

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Solution

The fourth proportional to 254,199.88, 381,202.71 and 85,674.93 is: 128,479.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,199.88 : 381,202.71 = 85,674.93 : x
  2. Step 2: Convert to fraction form
    254,199.88/381,202.71 = 85,674.93/x
  3. Step 3: Cross multiply
    254,199.88x = 381,202.71 × 85,674.93
  4. Step 4: Simplify right side
    254,199.88x = 32,659,515,495.06
  5. Step 5: Solve for x
    x = 32,659,515,495.06/254,199.88
  6. Step 6: Final answer
    x = 128,479.67

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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.