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Finding the Fourth Proportional to 317.00, 474.39 and 245.00

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Solution

The fourth proportional to 317.00, 474.39 and 245.00 is: 366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.00 : 474.39 = 245.00 : x
  2. Step 2: Convert to fraction form
    317.00/474.39 = 245.00/x
  3. Step 3: Cross multiply
    317.00x = 474.39 × 245.00
  4. Step 4: Simplify right side
    317.00x = 116,223.18
  5. Step 5: Solve for x
    x = 116,223.18/317.00
  6. Step 6: Final answer
    x = 366.64

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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.