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Finding the Fourth Proportional to 583.52, 875.03 and 309.55

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Solution

The fourth proportional to 583.52, 875.03 and 309.55 is: 464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.52 : 875.03 = 309.55 : x
  2. Step 2: Convert to fraction form
    583.52/875.03 = 309.55/x
  3. Step 3: Cross multiply
    583.52x = 875.03 × 309.55
  4. Step 4: Simplify right side
    583.52x = 270,863.99
  5. Step 5: Solve for x
    x = 270,863.99/583.52
  6. Step 6: Final answer
    x = 464.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.