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Finding the Fourth Proportional to 424.42, 585.73 and 237.90

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Solution

The fourth proportional to 424.42, 585.73 and 237.90 is: 328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.42 : 585.73 = 237.90 : x
  2. Step 2: Convert to fraction form
    424.42/585.73 = 237.90/x
  3. Step 3: Cross multiply
    424.42x = 585.73 × 237.90
  4. Step 4: Simplify right side
    424.42x = 139,345.30
  5. Step 5: Solve for x
    x = 139,345.30/424.42
  6. Step 6: Final answer
    x = 328.32

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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.