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Finding the Fourth Proportional to 370.93, 556.60 and 317.07

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Solution

The fourth proportional to 370.93, 556.60 and 317.07 is: 475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.93 : 556.60 = 317.07 : x
  2. Step 2: Convert to fraction form
    370.93/556.60 = 317.07/x
  3. Step 3: Cross multiply
    370.93x = 556.60 × 317.07
  4. Step 4: Simplify right side
    370.93x = 176,481.16
  5. Step 5: Solve for x
    x = 176,481.16/370.93
  6. Step 6: Final answer
    x = 475.78

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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.