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Finding the Fourth Proportional to 373.09, 557.12 and 304.75

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Solution

The fourth proportional to 373.09, 557.12 and 304.75 is: 455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.09 : 557.12 = 304.75 : x
  2. Step 2: Convert to fraction form
    373.09/557.12 = 304.75/x
  3. Step 3: Cross multiply
    373.09x = 557.12 × 304.75
  4. Step 4: Simplify right side
    373.09x = 169,779.53
  5. Step 5: Solve for x
    x = 169,779.53/373.09
  6. Step 6: Final answer
    x = 455.06

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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.