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Finding the Fourth Proportional to 373.01, 558.90 and 312.26

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Solution

The fourth proportional to 373.01, 558.90 and 312.26 is: 467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.01 : 558.90 = 312.26 : x
  2. Step 2: Convert to fraction form
    373.01/558.90 = 312.26/x
  3. Step 3: Cross multiply
    373.01x = 558.90 × 312.26
  4. Step 4: Simplify right side
    373.01x = 174,519.32
  5. Step 5: Solve for x
    x = 174,519.32/373.01
  6. Step 6: Final answer
    x = 467.87

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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.