Home / 285,261.66-393,667.20-156,205.62

Finding the Fourth Proportional to 285,261.66, 393,667.20 and 156,205.62

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Solution

The fourth proportional to 285,261.66, 393,667.20 and 156,205.62 is: 215,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,261.66 : 393,667.20 = 156,205.62 : x
  2. Step 2: Convert to fraction form
    285,261.66/393,667.20 = 156,205.62/x
  3. Step 3: Cross multiply
    285,261.66x = 393,667.20 × 156,205.62
  4. Step 4: Simplify right side
    285,261.66x = 61,493,029,049.66
  5. Step 5: Solve for x
    x = 61,493,029,049.66/285,261.66
  6. Step 6: Final answer
    x = 215,567.10

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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.