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Finding the Fourth Proportional to 436.75, 602.72 and 240.26

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Solution

The fourth proportional to 436.75, 602.72 and 240.26 is: 331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.75 : 602.72 = 240.26 : x
  2. Step 2: Convert to fraction form
    436.75/602.72 = 240.26/x
  3. Step 3: Cross multiply
    436.75x = 602.72 × 240.26
  4. Step 4: Simplify right side
    436.75x = 144,808.31
  5. Step 5: Solve for x
    x = 144,808.31/436.75
  6. Step 6: Final answer
    x = 331.56

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Find fourth proportional to 218.38, 301.36 and 120.13
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1.5x scale

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.