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Finding the Fourth Proportional to 309.51, 463.59 and 273.06

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Solution

The fourth proportional to 309.51, 463.59 and 273.06 is: 408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.51 : 463.59 = 273.06 : x
  2. Step 2: Convert to fraction form
    309.51/463.59 = 273.06/x
  3. Step 3: Cross multiply
    309.51x = 463.59 × 273.06
  4. Step 4: Simplify right side
    309.51x = 126,587.89
  5. Step 5: Solve for x
    x = 126,587.89/309.51
  6. Step 6: Final answer
    x = 408.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.