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Finding the Fourth Proportional to 521.32, 719.36 and 334.84

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Solution

The fourth proportional to 521.32, 719.36 and 334.84 is: 462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.32 : 719.36 = 334.84 : x
  2. Step 2: Convert to fraction form
    521.32/719.36 = 334.84/x
  3. Step 3: Cross multiply
    521.32x = 719.36 × 334.84
  4. Step 4: Simplify right side
    521.32x = 240,870.50
  5. Step 5: Solve for x
    x = 240,870.50/521.32
  6. Step 6: Final answer
    x = 462.04

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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.