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Finding the Fourth Proportional to 637.58, 879.90 and 375.50

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Solution

The fourth proportional to 637.58, 879.90 and 375.50 is: 518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.58 : 879.90 = 375.50 : x
  2. Step 2: Convert to fraction form
    637.58/879.90 = 375.50/x
  3. Step 3: Cross multiply
    637.58x = 879.90 × 375.50
  4. Step 4: Simplify right side
    637.58x = 330,402.45
  5. Step 5: Solve for x
    x = 330,402.45/637.58
  6. Step 6: Final answer
    x = 518.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.