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Finding the Fourth Proportional to 436.57, 602.45 and 240.07

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Solution

The fourth proportional to 436.57, 602.45 and 240.07 is: 331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.57 : 602.45 = 240.07 : x
  2. Step 2: Convert to fraction form
    436.57/602.45 = 240.07/x
  3. Step 3: Cross multiply
    436.57x = 602.45 × 240.07
  4. Step 4: Simplify right side
    436.57x = 144,630.17
  5. Step 5: Solve for x
    x = 144,630.17/436.57
  6. Step 6: Final answer
    x = 331.29

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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.