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Finding the Fourth Proportional to 354.61, 489.46 and 244.36

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Solution

The fourth proportional to 354.61, 489.46 and 244.36 is: 337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.61 : 489.46 = 244.36 : x
  2. Step 2: Convert to fraction form
    354.61/489.46 = 244.36/x
  3. Step 3: Cross multiply
    354.61x = 489.46 × 244.36
  4. Step 4: Simplify right side
    354.61x = 119,602.00
  5. Step 5: Solve for x
    x = 119,602.00/354.61
  6. Step 6: Final answer
    x = 337.28

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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.