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Finding the Fourth Proportional to 317.16, 474.48 and 240.34

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Solution

The fourth proportional to 317.16, 474.48 and 240.34 is: 359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.16 : 474.48 = 240.34 : x
  2. Step 2: Convert to fraction form
    317.16/474.48 = 240.34/x
  3. Step 3: Cross multiply
    317.16x = 474.48 × 240.34
  4. Step 4: Simplify right side
    317.16x = 114,036.52
  5. Step 5: Solve for x
    x = 114,036.52/317.16
  6. Step 6: Final answer
    x = 359.56

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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.