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Finding the Fourth Proportional to 213,606, 294,764.76 and 118,107.12

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Solution

The fourth proportional to 213,606, 294,764.76 and 118,107.12 is: 162,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,606 : 294,764.76 = 118,107.12 : x
  2. Step 2: Convert to fraction form
    213,606/294,764.76 = 118,107.12/x
  3. Step 3: Cross multiply
    213,606x = 294,764.76 × 118,107.12
  4. Step 4: Simplify right side
    213,606x = 34,813,816,881.09
  5. Step 5: Solve for x
    x = 34,813,816,881.09/213,606
  6. Step 6: Final answer
    x = 162,981.46

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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.