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Finding the Fourth Proportional to 525,272.57, 787,843.11 and 146,221.73

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Solution

The fourth proportional to 525,272.57, 787,843.11 and 146,221.73 is: 219,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,272.57 : 787,843.11 = 146,221.73 : x
  2. Step 2: Convert to fraction form
    525,272.57/787,843.11 = 146,221.73/x
  3. Step 3: Cross multiply
    525,272.57x = 787,843.11 × 146,221.73
  4. Step 4: Simplify right side
    525,272.57x = 115,199,782,512.78
  5. Step 5: Solve for x
    x = 115,199,782,512.78/525,272.57
  6. Step 6: Final answer
    x = 219,314.29

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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.