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Finding the Fourth Proportional to 346.62, 516.62 and 273.18

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Solution

The fourth proportional to 346.62, 516.62 and 273.18 is: 407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.62 : 516.62 = 273.18 : x
  2. Step 2: Convert to fraction form
    346.62/516.62 = 273.18/x
  3. Step 3: Cross multiply
    346.62x = 516.62 × 273.18
  4. Step 4: Simplify right side
    346.62x = 141,128.89
  5. Step 5: Solve for x
    x = 141,128.89/346.62
  6. Step 6: Final answer
    x = 407.16

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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.