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Finding the Fourth Proportional to 369.92, 555.06 and 153.52

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Solution

The fourth proportional to 369.92, 555.06 and 153.52 is: 230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.92 : 555.06 = 153.52 : x
  2. Step 2: Convert to fraction form
    369.92/555.06 = 153.52/x
  3. Step 3: Cross multiply
    369.92x = 555.06 × 153.52
  4. Step 4: Simplify right side
    369.92x = 85,212.81
  5. Step 5: Solve for x
    x = 85,212.81/369.92
  6. Step 6: Final answer
    x = 230.35

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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.