Home / 217,810.88-300,579.04-122,317.64

Finding the Fourth Proportional to 217,810.88, 300,579.04 and 122,317.64

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Solution

The fourth proportional to 217,810.88, 300,579.04 and 122,317.64 is: 168,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,810.88 : 300,579.04 = 122,317.64 : x
  2. Step 2: Convert to fraction form
    217,810.88/300,579.04 = 122,317.64/x
  3. Step 3: Cross multiply
    217,810.88x = 300,579.04 × 122,317.64
  4. Step 4: Simplify right side
    217,810.88x = 36,766,118,806.27
  5. Step 5: Solve for x
    x = 36,766,118,806.27/217,810.88
  6. Step 6: Final answer
    x = 168,798.36

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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.