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Finding the Fourth Proportional to 451.57, 675.72 and 373.81

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Solution

The fourth proportional to 451.57, 675.72 and 373.81 is: 559.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.57 : 675.72 = 373.81 : x
  2. Step 2: Convert to fraction form
    451.57/675.72 = 373.81/x
  3. Step 3: Cross multiply
    451.57x = 675.72 × 373.81
  4. Step 4: Simplify right side
    451.57x = 252,590.89
  5. Step 5: Solve for x
    x = 252,590.89/451.57
  6. Step 6: Final answer
    x = 559.36

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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.