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Finding the Fourth Proportional to 362.61, 544.05 and 260.55

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Solution

The fourth proportional to 362.61, 544.05 and 260.55 is: 390.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.61 : 544.05 = 260.55 : x
  2. Step 2: Convert to fraction form
    362.61/544.05 = 260.55/x
  3. Step 3: Cross multiply
    362.61x = 544.05 × 260.55
  4. Step 4: Simplify right side
    362.61x = 141,752.23
  5. Step 5: Solve for x
    x = 141,752.23/362.61
  6. Step 6: Final answer
    x = 390.92

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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.