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Finding the Fourth Proportional to 555.46, 767.37 and 551.14

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Solution

The fourth proportional to 555.46, 767.37 and 551.14 is: 761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.46 : 767.37 = 551.14 : x
  2. Step 2: Convert to fraction form
    555.46/767.37 = 551.14/x
  3. Step 3: Cross multiply
    555.46x = 767.37 × 551.14
  4. Step 4: Simplify right side
    555.46x = 422,928.30
  5. Step 5: Solve for x
    x = 422,928.30/555.46
  6. Step 6: Final answer
    x = 761.40

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Double scale
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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.