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Finding the Fourth Proportional to 547,953.20, 821,346.60 and 210,863.60

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Solution

The fourth proportional to 547,953.20, 821,346.60 and 210,863.60 is: 316,070.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,953.20 : 821,346.60 = 210,863.60 : x
  2. Step 2: Convert to fraction form
    547,953.20/821,346.60 = 210,863.60/x
  3. Step 3: Cross multiply
    547,953.20x = 821,346.60 × 210,863.60
  4. Step 4: Simplify right side
    547,953.20x = 173,192,100,923.76
  5. Step 5: Solve for x
    x = 173,192,100,923.76/547,953.20
  6. Step 6: Final answer
    x = 316,070.97

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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.