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Finding the Fourth Proportional to 529.06, 730.08 and 296.20

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Solution

The fourth proportional to 529.06, 730.08 and 296.20 is: 408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.06 : 730.08 = 296.20 : x
  2. Step 2: Convert to fraction form
    529.06/730.08 = 296.20/x
  3. Step 3: Cross multiply
    529.06x = 730.08 × 296.20
  4. Step 4: Simplify right side
    529.06x = 216,249.70
  5. Step 5: Solve for x
    x = 216,249.70/529.06
  6. Step 6: Final answer
    x = 408.74

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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.