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Finding the Fourth Proportional to 436.65, 602.62 and 240.21

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Solution

The fourth proportional to 436.65, 602.62 and 240.21 is: 331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.65 : 602.62 = 240.21 : x
  2. Step 2: Convert to fraction form
    436.65/602.62 = 240.21/x
  3. Step 3: Cross multiply
    436.65x = 602.62 × 240.21
  4. Step 4: Simplify right side
    436.65x = 144,751.14
  5. Step 5: Solve for x
    x = 144,751.14/436.65
  6. Step 6: Final answer
    x = 331.50

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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.