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Finding the Fourth Proportional to 375,601.14, 518,379.21 and 214,419.78

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Solution

The fourth proportional to 375,601.14, 518,379.21 and 214,419.78 is: 295,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,601.14 : 518,379.21 = 214,419.78 : x
  2. Step 2: Convert to fraction form
    375,601.14/518,379.21 = 214,419.78/x
  3. Step 3: Cross multiply
    375,601.14x = 518,379.21 × 214,419.78
  4. Step 4: Simplify right side
    375,601.14x = 111,150,756,164.77
  5. Step 5: Solve for x
    x = 111,150,756,164.77/375,601.14
  6. Step 6: Final answer
    x = 295,927.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.