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Finding the Fourth Proportional to 347.14, 479.06 and 207.28

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Solution

The fourth proportional to 347.14, 479.06 and 207.28 is: 286.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.14 : 479.06 = 207.28 : x
  2. Step 2: Convert to fraction form
    347.14/479.06 = 207.28/x
  3. Step 3: Cross multiply
    347.14x = 479.06 × 207.28
  4. Step 4: Simplify right side
    347.14x = 99,298.37
  5. Step 5: Solve for x
    x = 99,298.37/347.14
  6. Step 6: Final answer
    x = 286.05

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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.