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Finding the Fourth Proportional to 637.41, 955.31 and 348.51

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Solution

The fourth proportional to 637.41, 955.31 and 348.51 is: 522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.41 : 955.31 = 348.51 : x
  2. Step 2: Convert to fraction form
    637.41/955.31 = 348.51/x
  3. Step 3: Cross multiply
    637.41x = 955.31 × 348.51
  4. Step 4: Simplify right side
    637.41x = 332,933.35
  5. Step 5: Solve for x
    x = 332,933.35/637.41
  6. Step 6: Final answer
    x = 522.32

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Double scale
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Similar ratio
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1.5x scale

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.