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Finding the Fourth Proportional to 552.76, 762.69 and 436.66

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Solution

The fourth proportional to 552.76, 762.69 and 436.66 is: 602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.76 : 762.69 = 436.66 : x
  2. Step 2: Convert to fraction form
    552.76/762.69 = 436.66/x
  3. Step 3: Cross multiply
    552.76x = 762.69 × 436.66
  4. Step 4: Simplify right side
    552.76x = 333,036.22
  5. Step 5: Solve for x
    x = 333,036.22/552.76
  6. Step 6: Final answer
    x = 602.50

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Find fourth proportional to 276.38, 381.35 and 218.33
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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.