Home / 285,254.11-393,650.69-156,200.73

Finding the Fourth Proportional to 285,254.11, 393,650.69 and 156,200.73

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Solution

The fourth proportional to 285,254.11, 393,650.69 and 156,200.73 is: 215,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,254.11 : 393,650.69 = 156,200.73 : x
  2. Step 2: Convert to fraction form
    285,254.11/393,650.69 = 156,200.73/x
  3. Step 3: Cross multiply
    285,254.11x = 393,650.69 × 156,200.73
  4. Step 4: Simplify right side
    285,254.11x = 61,488,525,143.00
  5. Step 5: Solve for x
    x = 61,488,525,143.00/285,254.11
  6. Step 6: Final answer
    x = 215,557.02

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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.