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Finding the Fourth Proportional to 354.96, 529.02 and 347.76

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Solution

The fourth proportional to 354.96, 529.02 and 347.76 is: 518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.96 : 529.02 = 347.76 : x
  2. Step 2: Convert to fraction form
    354.96/529.02 = 347.76/x
  3. Step 3: Cross multiply
    354.96x = 529.02 × 347.76
  4. Step 4: Simplify right side
    354.96x = 183,972.00
  5. Step 5: Solve for x
    x = 183,972.00/354.96
  6. Step 6: Final answer
    x = 518.29

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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.