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Finding the Fourth Proportional to 601.45, 830.04 and 352.70

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Solution

The fourth proportional to 601.45, 830.04 and 352.70 is: 486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.45 : 830.04 = 352.70 : x
  2. Step 2: Convert to fraction form
    601.45/830.04 = 352.70/x
  3. Step 3: Cross multiply
    601.45x = 830.04 × 352.70
  4. Step 4: Simplify right side
    601.45x = 292,755.11
  5. Step 5: Solve for x
    x = 292,755.11/601.45
  6. Step 6: Final answer
    x = 486.75

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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.