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Finding the Fourth Proportional to 373.21, 557.29 and 295.30

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Solution

The fourth proportional to 373.21, 557.29 and 295.30 is: 440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.21 : 557.29 = 295.30 : x
  2. Step 2: Convert to fraction form
    373.21/557.29 = 295.30/x
  3. Step 3: Cross multiply
    373.21x = 557.29 × 295.30
  4. Step 4: Simplify right side
    373.21x = 164,567.74
  5. Step 5: Solve for x
    x = 164,567.74/373.21
  6. Step 6: Final answer
    x = 440.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.