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Finding the Fourth Proportional to 357.56, 535.32 and 235.45

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Solution

The fourth proportional to 357.56, 535.32 and 235.45 is: 352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.56 : 535.32 = 235.45 : x
  2. Step 2: Convert to fraction form
    357.56/535.32 = 235.45/x
  3. Step 3: Cross multiply
    357.56x = 535.32 × 235.45
  4. Step 4: Simplify right side
    357.56x = 126,041.09
  5. Step 5: Solve for x
    x = 126,041.09/357.56
  6. Step 6: Final answer
    x = 352.50

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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.