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Finding the Fourth Proportional to 377.95, 567.02 and 172.58

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Solution

The fourth proportional to 377.95, 567.02 and 172.58 is: 258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.95 : 567.02 = 172.58 : x
  2. Step 2: Convert to fraction form
    377.95/567.02 = 172.58/x
  3. Step 3: Cross multiply
    377.95x = 567.02 × 172.58
  4. Step 4: Simplify right side
    377.95x = 97,856.31
  5. Step 5: Solve for x
    x = 97,856.31/377.95
  6. Step 6: Final answer
    x = 258.91

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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.