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Finding the Fourth Proportional to 650.25, 975.55 and 342.02

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Solution

The fourth proportional to 650.25, 975.55 and 342.02 is: 513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.25 : 975.55 = 342.02 : x
  2. Step 2: Convert to fraction form
    650.25/975.55 = 342.02/x
  3. Step 3: Cross multiply
    650.25x = 975.55 × 342.02
  4. Step 4: Simplify right side
    650.25x = 333,657.61
  5. Step 5: Solve for x
    x = 333,657.61/650.25
  6. Step 6: Final answer
    x = 513.12

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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.