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Finding the Fourth Proportional to 573.42, 860.10 and 284.64

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Solution

The fourth proportional to 573.42, 860.10 and 284.64 is: 426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.42 : 860.10 = 284.64 : x
  2. Step 2: Convert to fraction form
    573.42/860.10 = 284.64/x
  3. Step 3: Cross multiply
    573.42x = 860.10 × 284.64
  4. Step 4: Simplify right side
    573.42x = 244,818.86
  5. Step 5: Solve for x
    x = 244,818.86/573.42
  6. Step 6: Final answer
    x = 426.95

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Double scale
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Similar ratio
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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.