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Finding the Fourth Proportional to 526.98, 727.04 and 305.98

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Solution

The fourth proportional to 526.98, 727.04 and 305.98 is: 422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.98 : 727.04 = 305.98 : x
  2. Step 2: Convert to fraction form
    526.98/727.04 = 305.98/x
  3. Step 3: Cross multiply
    526.98x = 727.04 × 305.98
  4. Step 4: Simplify right side
    526.98x = 222,459.70
  5. Step 5: Solve for x
    x = 222,459.70/526.98
  6. Step 6: Final answer
    x = 422.14

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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.