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Finding the Fourth Proportional to 377.04, 515.74 and 371.40

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Solution

The fourth proportional to 377.04, 515.74 and 371.40 is: 508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.04 : 515.74 = 371.40 : x
  2. Step 2: Convert to fraction form
    377.04/515.74 = 371.40/x
  3. Step 3: Cross multiply
    377.04x = 515.74 × 371.40
  4. Step 4: Simplify right side
    377.04x = 191,545.84
  5. Step 5: Solve for x
    x = 191,545.84/377.04
  6. Step 6: Final answer
    x = 508.03

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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.