Home / 285,560.12-394,068.24-156,497.60

Finding the Fourth Proportional to 285,560.12, 394,068.24 and 156,497.60

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Solution

The fourth proportional to 285,560.12, 394,068.24 and 156,497.60 is: 215,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,560.12 : 394,068.24 = 156,497.60 : x
  2. Step 2: Convert to fraction form
    285,560.12/394,068.24 = 156,497.60/x
  3. Step 3: Cross multiply
    285,560.12x = 394,068.24 × 156,497.60
  4. Step 4: Simplify right side
    285,560.12x = 61,670,733,796.22
  5. Step 5: Solve for x
    x = 61,670,733,796.22/285,560.12
  6. Step 6: Final answer
    x = 215,964.10

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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.