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Finding the Fourth Proportional to 436.51, 602.90 and 336.21

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Solution

The fourth proportional to 436.51, 602.90 and 336.21 is: 464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.51 : 602.90 = 336.21 : x
  2. Step 2: Convert to fraction form
    436.51/602.90 = 336.21/x
  3. Step 3: Cross multiply
    436.51x = 602.90 × 336.21
  4. Step 4: Simplify right side
    436.51x = 202,701.25
  5. Step 5: Solve for x
    x = 202,701.25/436.51
  6. Step 6: Final answer
    x = 464.37

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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.