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Finding the Fourth Proportional to 351,073.62, 484,479.60 and 189,928.20

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Solution

The fourth proportional to 351,073.62, 484,479.60 and 189,928.20 is: 262,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,073.62 : 484,479.60 = 189,928.20 : x
  2. Step 2: Convert to fraction form
    351,073.62/484,479.60 = 189,928.20/x
  3. Step 3: Cross multiply
    351,073.62x = 484,479.60 × 189,928.20
  4. Step 4: Simplify right side
    351,073.62x = 92,016,338,364.72
  5. Step 5: Solve for x
    x = 92,016,338,364.72/351,073.62
  6. Step 6: Final answer
    x = 262,099.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.