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Finding the Fourth Proportional to 435.19, 600.10 and 355.91

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Solution

The fourth proportional to 435.19, 600.10 and 355.91 is: 490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.19 : 600.10 = 355.91 : x
  2. Step 2: Convert to fraction form
    435.19/600.10 = 355.91/x
  3. Step 3: Cross multiply
    435.19x = 600.10 × 355.91
  4. Step 4: Simplify right side
    435.19x = 213,581.59
  5. Step 5: Solve for x
    x = 213,581.59/435.19
  6. Step 6: Final answer
    x = 490.78

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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.