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Finding the Fourth Proportional to 555.29, 765.95 and 334.31

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Solution

The fourth proportional to 555.29, 765.95 and 334.31 is: 461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.29 : 765.95 = 334.31 : x
  2. Step 2: Convert to fraction form
    555.29/765.95 = 334.31/x
  3. Step 3: Cross multiply
    555.29x = 765.95 × 334.31
  4. Step 4: Simplify right side
    555.29x = 256,063.07
  5. Step 5: Solve for x
    x = 256,063.07/555.29
  6. Step 6: Final answer
    x = 461.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.