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Finding the Fourth Proportional to 336.60, 501.84 and 317.16

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Solution

The fourth proportional to 336.60, 501.84 and 317.16 is: 472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.60 : 501.84 = 317.16 : x
  2. Step 2: Convert to fraction form
    336.60/501.84 = 317.16/x
  3. Step 3: Cross multiply
    336.60x = 501.84 × 317.16
  4. Step 4: Simplify right side
    336.60x = 159,163.57
  5. Step 5: Solve for x
    x = 159,163.57/336.60
  6. Step 6: Final answer
    x = 472.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.