Home / 285,254.61-393,651.39-156,201.23

Finding the Fourth Proportional to 285,254.61, 393,651.39 and 156,201.23

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Solution

The fourth proportional to 285,254.61, 393,651.39 and 156,201.23 is: 215,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,254.61 : 393,651.39 = 156,201.23 : x
  2. Step 2: Convert to fraction form
    285,254.61/393,651.39 = 156,201.23/x
  3. Step 3: Cross multiply
    285,254.61x = 393,651.39 × 156,201.23
  4. Step 4: Simplify right side
    285,254.61x = 61,488,829,340.95
  5. Step 5: Solve for x
    x = 61,488,829,340.95/285,254.61
  6. Step 6: Final answer
    x = 215,557.71

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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.