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Finding the Fourth Proportional to 529.94, 730.28 and 382.29

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Solution

The fourth proportional to 529.94, 730.28 and 382.29 is: 526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.94 : 730.28 = 382.29 : x
  2. Step 2: Convert to fraction form
    529.94/730.28 = 382.29/x
  3. Step 3: Cross multiply
    529.94x = 730.28 × 382.29
  4. Step 4: Simplify right side
    529.94x = 279,179.70
  5. Step 5: Solve for x
    x = 279,179.70/529.94
  6. Step 6: Final answer
    x = 526.82

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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.