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Finding the Fourth Proportional to 435.02, 600.21 and 257.93

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Solution

The fourth proportional to 435.02, 600.21 and 257.93 is: 355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.02 : 600.21 = 257.93 : x
  2. Step 2: Convert to fraction form
    435.02/600.21 = 257.93/x
  3. Step 3: Cross multiply
    435.02x = 600.21 × 257.93
  4. Step 4: Simplify right side
    435.02x = 154,812.17
  5. Step 5: Solve for x
    x = 154,812.17/435.02
  6. Step 6: Final answer
    x = 355.87

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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.