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Finding the Fourth Proportional to 572.64, 858.27 and 243.51

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Solution

The fourth proportional to 572.64, 858.27 and 243.51 is: 364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.64 : 858.27 = 243.51 : x
  2. Step 2: Convert to fraction form
    572.64/858.27 = 243.51/x
  3. Step 3: Cross multiply
    572.64x = 858.27 × 243.51
  4. Step 4: Simplify right side
    572.64x = 208,997.33
  5. Step 5: Solve for x
    x = 208,997.33/572.64
  6. Step 6: Final answer
    x = 364.97

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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.