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Finding the Fourth Proportional to 555.79, 767.07 and 334.88

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Solution

The fourth proportional to 555.79, 767.07 and 334.88 is: 462.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.79 : 767.07 = 334.88 : x
  2. Step 2: Convert to fraction form
    555.79/767.07 = 334.88/x
  3. Step 3: Cross multiply
    555.79x = 767.07 × 334.88
  4. Step 4: Simplify right side
    555.79x = 256,879.76
  5. Step 5: Solve for x
    x = 256,879.76/555.79
  6. Step 6: Final answer
    x = 462.19

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Why These Related Problems?

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