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Finding the Fourth Proportional to 536.98, 741.15 and 340.45

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Solution

The fourth proportional to 536.98, 741.15 and 340.45 is: 469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.98 : 741.15 = 340.45 : x
  2. Step 2: Convert to fraction form
    536.98/741.15 = 340.45/x
  3. Step 3: Cross multiply
    536.98x = 741.15 × 340.45
  4. Step 4: Simplify right side
    536.98x = 252,326.83
  5. Step 5: Solve for x
    x = 252,326.83/536.98
  6. Step 6: Final answer
    x = 469.90

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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.