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Finding the Fourth Proportional to 425.83, 587.58 and 239.29

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Solution

The fourth proportional to 425.83, 587.58 and 239.29 is: 330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.83 : 587.58 = 239.29 : x
  2. Step 2: Convert to fraction form
    425.83/587.58 = 239.29/x
  3. Step 3: Cross multiply
    425.83x = 587.58 × 239.29
  4. Step 4: Simplify right side
    425.83x = 140,602.02
  5. Step 5: Solve for x
    x = 140,602.02/425.83
  6. Step 6: Final answer
    x = 330.18

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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.