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Finding the Fourth Proportional to 474.20, 709.43 and 358.98

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Solution

The fourth proportional to 474.20, 709.43 and 358.98 is: 537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.20 : 709.43 = 358.98 : x
  2. Step 2: Convert to fraction form
    474.20/709.43 = 358.98/x
  3. Step 3: Cross multiply
    474.20x = 709.43 × 358.98
  4. Step 4: Simplify right side
    474.20x = 254,670.28
  5. Step 5: Solve for x
    x = 254,670.28/474.20
  6. Step 6: Final answer
    x = 537.05

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