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Finding the Fourth Proportional to 339,578.66, 468,621.33 and 212,328.02

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Solution

The fourth proportional to 339,578.66, 468,621.33 and 212,328.02 is: 293,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,578.66 : 468,621.33 = 212,328.02 : x
  2. Step 2: Convert to fraction form
    339,578.66/468,621.33 = 212,328.02/x
  3. Step 3: Cross multiply
    339,578.66x = 468,621.33 × 212,328.02
  4. Step 4: Simplify right side
    339,578.66x = 99,501,439,128.67
  5. Step 5: Solve for x
    x = 99,501,439,128.67/339,578.66
  6. Step 6: Final answer
    x = 293,014.41

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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.