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Finding the Fourth Proportional to 377.84, 566.30 and 172.35

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Solution

The fourth proportional to 377.84, 566.30 and 172.35 is: 258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.84 : 566.30 = 172.35 : x
  2. Step 2: Convert to fraction form
    377.84/566.30 = 172.35/x
  3. Step 3: Cross multiply
    377.84x = 566.30 × 172.35
  4. Step 4: Simplify right side
    377.84x = 97,600.94
  5. Step 5: Solve for x
    x = 97,600.94/377.84
  6. Step 6: Final answer
    x = 258.32

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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.