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Finding the Fourth Proportional to 368.33, 551.88 and 259.92

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Solution

The fourth proportional to 368.33, 551.88 and 259.92 is: 389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.33 : 551.88 = 259.92 : x
  2. Step 2: Convert to fraction form
    368.33/551.88 = 259.92/x
  3. Step 3: Cross multiply
    368.33x = 551.88 × 259.92
  4. Step 4: Simplify right side
    368.33x = 143,444.65
  5. Step 5: Solve for x
    x = 143,444.65/368.33
  6. Step 6: Final answer
    x = 389.45

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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.