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Finding the Fourth Proportional to 435.63, 601.07 and 258.58

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Solution

The fourth proportional to 435.63, 601.07 and 258.58 is: 356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.63 : 601.07 = 258.58 : x
  2. Step 2: Convert to fraction form
    435.63/601.07 = 258.58/x
  3. Step 3: Cross multiply
    435.63x = 601.07 × 258.58
  4. Step 4: Simplify right side
    435.63x = 155,425.83
  5. Step 5: Solve for x
    x = 155,425.83/435.63
  6. Step 6: Final answer
    x = 356.78

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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.