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Finding the Fourth Proportional to 379.04, 518.48 and 373.40

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Solution

The fourth proportional to 379.04, 518.48 and 373.40 is: 510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.04 : 518.48 = 373.40 : x
  2. Step 2: Convert to fraction form
    379.04/518.48 = 373.40/x
  3. Step 3: Cross multiply
    379.04x = 518.48 × 373.40
  4. Step 4: Simplify right side
    379.04x = 193,600.43
  5. Step 5: Solve for x
    x = 193,600.43/379.04
  6. Step 6: Final answer
    x = 510.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.