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Finding the Fourth Proportional to 435.58, 601.43 and 386.37

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Solution

The fourth proportional to 435.58, 601.43 and 386.37 is: 533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.58 : 601.43 = 386.37 : x
  2. Step 2: Convert to fraction form
    435.58/601.43 = 386.37/x
  3. Step 3: Cross multiply
    435.58x = 601.43 × 386.37
  4. Step 4: Simplify right side
    435.58x = 232,372.58
  5. Step 5: Solve for x
    x = 232,372.58/435.58
  6. Step 6: Final answer
    x = 533.48

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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.