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Finding the Fourth Proportional to 536.88, 740.89 and 304.05

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Solution

The fourth proportional to 536.88, 740.89 and 304.05 is: 419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.88 : 740.89 = 304.05 : x
  2. Step 2: Convert to fraction form
    536.88/740.89 = 304.05/x
  3. Step 3: Cross multiply
    536.88x = 740.89 × 304.05
  4. Step 4: Simplify right side
    536.88x = 225,263.14
  5. Step 5: Solve for x
    x = 225,263.14/536.88
  6. Step 6: Final answer
    x = 419.58

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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.