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Finding the Fourth Proportional to 537.40, 741.30 and 304.48

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Solution

The fourth proportional to 537.40, 741.30 and 304.48 is: 420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.40 : 741.30 = 304.48 : x
  2. Step 2: Convert to fraction form
    537.40/741.30 = 304.48/x
  3. Step 3: Cross multiply
    537.40x = 741.30 × 304.48
  4. Step 4: Simplify right side
    537.40x = 225,711.02
  5. Step 5: Solve for x
    x = 225,711.02/537.40
  6. Step 6: Final answer
    x = 420.01

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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.