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Finding the Fourth Proportional to 436.90, 602.90 and 262.34

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Solution

The fourth proportional to 436.90, 602.90 and 262.34 is: 362.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.90 : 602.90 = 262.34 : x
  2. Step 2: Convert to fraction form
    436.90/602.90 = 262.34/x
  3. Step 3: Cross multiply
    436.90x = 602.90 × 262.34
  4. Step 4: Simplify right side
    436.90x = 158,160.46
  5. Step 5: Solve for x
    x = 158,160.46/436.90
  6. Step 6: Final answer
    x = 362.01

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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.