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Finding the Fourth Proportional to 379.16, 570.87 and 336.08

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Solution

The fourth proportional to 379.16, 570.87 and 336.08 is: 506.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.16 : 570.87 = 336.08 : x
  2. Step 2: Convert to fraction form
    379.16/570.87 = 336.08/x
  3. Step 3: Cross multiply
    379.16x = 570.87 × 336.08
  4. Step 4: Simplify right side
    379.16x = 191,857.99
  5. Step 5: Solve for x
    x = 191,857.99/379.16
  6. Step 6: Final answer
    x = 506.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.