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Finding the Fourth Proportional to 339,578.16, 468,620.64 and 212,327.52

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Solution

The fourth proportional to 339,578.16, 468,620.64 and 212,327.52 is: 293,013.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,578.16 : 468,620.64 = 212,327.52 : x
  2. Step 2: Convert to fraction form
    339,578.16/468,620.64 = 212,327.52/x
  3. Step 3: Cross multiply
    339,578.16x = 468,620.64 × 212,327.52
  4. Step 4: Simplify right side
    339,578.16x = 99,501,058,312.01
  5. Step 5: Solve for x
    x = 99,501,058,312.01/339,578.16
  6. Step 6: Final answer
    x = 293,013.72

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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.