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Finding the Fourth Proportional to 516.34, 710.25 and 453.01

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Solution

The fourth proportional to 516.34, 710.25 and 453.01 is: 623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.34 : 710.25 = 453.01 : x
  2. Step 2: Convert to fraction form
    516.34/710.25 = 453.01/x
  3. Step 3: Cross multiply
    516.34x = 710.25 × 453.01
  4. Step 4: Simplify right side
    516.34x = 321,748.09
  5. Step 5: Solve for x
    x = 321,748.09/516.34
  6. Step 6: Final answer
    x = 623.13

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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.