Home / 213,464.40-320,149.43-61,628.49

Finding the Fourth Proportional to 213,464.40, 320,149.43 and 61,628.49

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Solution

The fourth proportional to 213,464.40, 320,149.43 and 61,628.49 is: 92,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,464.40 : 320,149.43 = 61,628.49 : x
  2. Step 2: Convert to fraction form
    213,464.40/320,149.43 = 61,628.49/x
  3. Step 3: Cross multiply
    213,464.40x = 320,149.43 × 61,628.49
  4. Step 4: Simplify right side
    213,464.40x = 19,730,326,318.44
  5. Step 5: Solve for x
    x = 19,730,326,318.44/213,464.40
  6. Step 6: Final answer
    x = 92,429.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.