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Finding the Fourth Proportional to 536.58, 740.62 and 340.20

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Solution

The fourth proportional to 536.58, 740.62 and 340.20 is: 469.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.58 : 740.62 = 340.20 : x
  2. Step 2: Convert to fraction form
    536.58/740.62 = 340.20/x
  3. Step 3: Cross multiply
    536.58x = 740.62 × 340.20
  4. Step 4: Simplify right side
    536.58x = 251,958.92
  5. Step 5: Solve for x
    x = 251,958.92/536.58
  6. Step 6: Final answer
    x = 469.56

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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.