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Finding the Fourth Proportional to 535.51, 738.94 and 302.63

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Solution

The fourth proportional to 535.51, 738.94 and 302.63 is: 417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.51 : 738.94 = 302.63 : x
  2. Step 2: Convert to fraction form
    535.51/738.94 = 302.63/x
  3. Step 3: Cross multiply
    535.51x = 738.94 × 302.63
  4. Step 4: Simplify right side
    535.51x = 223,623.90
  5. Step 5: Solve for x
    x = 223,623.90/535.51
  6. Step 6: Final answer
    x = 417.59

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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.