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Finding the Fourth Proportional to 474.51, 710.27 and 300.57

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Solution

The fourth proportional to 474.51, 710.27 and 300.57 is: 449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.51 : 710.27 = 300.57 : x
  2. Step 2: Convert to fraction form
    474.51/710.27 = 300.57/x
  3. Step 3: Cross multiply
    474.51x = 710.27 × 300.57
  4. Step 4: Simplify right side
    474.51x = 213,485.85
  5. Step 5: Solve for x
    x = 213,485.85/474.51
  6. Step 6: Final answer
    x = 449.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.