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Finding the Fourth Proportional to 375,299.79, 517,950.81 and 214,179.05

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Solution

The fourth proportional to 375,299.79, 517,950.81 and 214,179.05 is: 295,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,299.79 : 517,950.81 = 214,179.05 : x
  2. Step 2: Convert to fraction form
    375,299.79/517,950.81 = 214,179.05/x
  3. Step 3: Cross multiply
    375,299.79x = 517,950.81 × 214,179.05
  4. Step 4: Simplify right side
    375,299.79x = 110,934,212,432.53
  5. Step 5: Solve for x
    x = 110,934,212,432.53/375,299.79
  6. Step 6: Final answer
    x = 295,588.26

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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.