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Finding the Fourth Proportional to 355.17, 489.53 and 244.46

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Solution

The fourth proportional to 355.17, 489.53 and 244.46 is: 336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.17 : 489.53 = 244.46 : x
  2. Step 2: Convert to fraction form
    355.17/489.53 = 244.46/x
  3. Step 3: Cross multiply
    355.17x = 489.53 × 244.46
  4. Step 4: Simplify right side
    355.17x = 119,666.83
  5. Step 5: Solve for x
    x = 119,666.83/355.17
  6. Step 6: Final answer
    x = 336.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.