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Finding the Fourth Proportional to 374.92, 562.37 and 317.51

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Solution

The fourth proportional to 374.92, 562.37 and 317.51 is: 476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.92 : 562.37 = 317.51 : x
  2. Step 2: Convert to fraction form
    374.92/562.37 = 317.51/x
  3. Step 3: Cross multiply
    374.92x = 562.37 × 317.51
  4. Step 4: Simplify right side
    374.92x = 178,558.10
  5. Step 5: Solve for x
    x = 178,558.10/374.92
  6. Step 6: Final answer
    x = 476.26

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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.