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Finding the Fourth Proportional to 357.36, 535.32 and 284.37

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Solution

The fourth proportional to 357.36, 535.32 and 284.37 is: 425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.36 : 535.32 = 284.37 : x
  2. Step 2: Convert to fraction form
    357.36/535.32 = 284.37/x
  3. Step 3: Cross multiply
    357.36x = 535.32 × 284.37
  4. Step 4: Simplify right side
    357.36x = 152,228.95
  5. Step 5: Solve for x
    x = 152,228.95/357.36
  6. Step 6: Final answer
    x = 425.98

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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.