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Finding the Fourth Proportional to 529.68, 792.96 and 347.16

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Solution

The fourth proportional to 529.68, 792.96 and 347.16 is: 519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.68 : 792.96 = 347.16 : x
  2. Step 2: Convert to fraction form
    529.68/792.96 = 347.16/x
  3. Step 3: Cross multiply
    529.68x = 792.96 × 347.16
  4. Step 4: Simplify right side
    529.68x = 275,283.99
  5. Step 5: Solve for x
    x = 275,283.99/529.68
  6. Step 6: Final answer
    x = 519.72

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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.