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Finding the Fourth Proportional to 401.58, 605.43 and 373.74

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Solution

The fourth proportional to 401.58, 605.43 and 373.74 is: 563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.58 : 605.43 = 373.74 : x
  2. Step 2: Convert to fraction form
    401.58/605.43 = 373.74/x
  3. Step 3: Cross multiply
    401.58x = 605.43 × 373.74
  4. Step 4: Simplify right side
    401.58x = 226,273.41
  5. Step 5: Solve for x
    x = 226,273.41/401.58
  6. Step 6: Final answer
    x = 563.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.