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Finding the Fourth Proportional to 572.14, 857.79 and 283.51

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Solution

The fourth proportional to 572.14, 857.79 and 283.51 is: 425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.14 : 857.79 = 283.51 : x
  2. Step 2: Convert to fraction form
    572.14/857.79 = 283.51/x
  3. Step 3: Cross multiply
    572.14x = 857.79 × 283.51
  4. Step 4: Simplify right side
    572.14x = 243,192.04
  5. Step 5: Solve for x
    x = 243,192.04/572.14
  6. Step 6: Final answer
    x = 425.06

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Double scale
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Similar ratio
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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.