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Finding the Fourth Proportional to 366,069.30, 505,160.88 and 213,111.88

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Solution

The fourth proportional to 366,069.30, 505,160.88 and 213,111.88 is: 294,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,069.30 : 505,160.88 = 213,111.88 : x
  2. Step 2: Convert to fraction form
    366,069.30/505,160.88 = 213,111.88/x
  3. Step 3: Cross multiply
    366,069.30x = 505,160.88 × 213,111.88
  4. Step 4: Simplify right side
    366,069.30x = 107,655,784,839.25
  5. Step 5: Solve for x
    x = 107,655,784,839.25/366,069.30
  6. Step 6: Final answer
    x = 294,085.81

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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.