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Finding the Fourth Proportional to 536.72, 740.68 and 297.45

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Solution

The fourth proportional to 536.72, 740.68 and 297.45 is: 410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.72 : 740.68 = 297.45 : x
  2. Step 2: Convert to fraction form
    536.72/740.68 = 297.45/x
  3. Step 3: Cross multiply
    536.72x = 740.68 × 297.45
  4. Step 4: Simplify right side
    536.72x = 220,314.52
  5. Step 5: Solve for x
    x = 220,314.52/536.72
  6. Step 6: Final answer
    x = 410.49

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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.