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Finding the Fourth Proportional to 373.12, 558.06 and 228.94

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Solution

The fourth proportional to 373.12, 558.06 and 228.94 is: 342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.12 : 558.06 = 228.94 : x
  2. Step 2: Convert to fraction form
    373.12/558.06 = 228.94/x
  3. Step 3: Cross multiply
    373.12x = 558.06 × 228.94
  4. Step 4: Simplify right side
    373.12x = 127,762.26
  5. Step 5: Solve for x
    x = 127,762.26/373.12
  6. Step 6: Final answer
    x = 342.42

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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.