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Finding the Fourth Proportional to 520.68, 718.14 and 334.02

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Solution

The fourth proportional to 520.68, 718.14 and 334.02 is: 460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.68 : 718.14 = 334.02 : x
  2. Step 2: Convert to fraction form
    520.68/718.14 = 334.02/x
  3. Step 3: Cross multiply
    520.68x = 718.14 × 334.02
  4. Step 4: Simplify right side
    520.68x = 239,873.12
  5. Step 5: Solve for x
    x = 239,873.12/520.68
  6. Step 6: Final answer
    x = 460.69

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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.