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Finding the Fourth Proportional to 556.34, 767.18 and 335.25

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Solution

The fourth proportional to 556.34, 767.18 and 335.25 is: 462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.34 : 767.18 = 335.25 : x
  2. Step 2: Convert to fraction form
    556.34/767.18 = 335.25/x
  3. Step 3: Cross multiply
    556.34x = 767.18 × 335.25
  4. Step 4: Simplify right side
    556.34x = 257,195.42
  5. Step 5: Solve for x
    x = 257,195.42/556.34
  6. Step 6: Final answer
    x = 462.30

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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.