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Finding the Fourth Proportional to 601.92, 830.55 and 377.82

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Solution

The fourth proportional to 601.92, 830.55 and 377.82 is: 521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.92 : 830.55 = 377.82 : x
  2. Step 2: Convert to fraction form
    601.92/830.55 = 377.82/x
  3. Step 3: Cross multiply
    601.92x = 830.55 × 377.82
  4. Step 4: Simplify right side
    601.92x = 313,798.40
  5. Step 5: Solve for x
    x = 313,798.40/601.92
  6. Step 6: Final answer
    x = 521.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.