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Finding the Fourth Proportional to 371.61, 557.26 and 152.35

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Solution

The fourth proportional to 371.61, 557.26 and 152.35 is: 228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.61 : 557.26 = 152.35 : x
  2. Step 2: Convert to fraction form
    371.61/557.26 = 152.35/x
  3. Step 3: Cross multiply
    371.61x = 557.26 × 152.35
  4. Step 4: Simplify right side
    371.61x = 84,898.56
  5. Step 5: Solve for x
    x = 84,898.56/371.61
  6. Step 6: Final answer
    x = 228.46

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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.