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Finding the Fourth Proportional to 583.40, 875.10 and 352.55

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Solution

The fourth proportional to 583.40, 875.10 and 352.55 is: 528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.40 : 875.10 = 352.55 : x
  2. Step 2: Convert to fraction form
    583.40/875.10 = 352.55/x
  3. Step 3: Cross multiply
    583.40x = 875.10 × 352.55
  4. Step 4: Simplify right side
    583.40x = 308,516.51
  5. Step 5: Solve for x
    x = 308,516.51/583.40
  6. Step 6: Final answer
    x = 528.83

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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.