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Finding the Fourth Proportional to 529.11, 730.15 and 293.05

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Solution

The fourth proportional to 529.11, 730.15 and 293.05 is: 404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.11 : 730.15 = 293.05 : x
  2. Step 2: Convert to fraction form
    529.11/730.15 = 293.05/x
  3. Step 3: Cross multiply
    529.11x = 730.15 × 293.05
  4. Step 4: Simplify right side
    529.11x = 213,970.46
  5. Step 5: Solve for x
    x = 213,970.46/529.11
  6. Step 6: Final answer
    x = 404.40

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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.