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Finding the Fourth Proportional to 219,426.57, 302,808.51 and 118,824.57

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Solution

The fourth proportional to 219,426.57, 302,808.51 and 118,824.57 is: 163,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,426.57 : 302,808.51 = 118,824.57 : x
  2. Step 2: Convert to fraction form
    219,426.57/302,808.51 = 118,824.57/x
  3. Step 3: Cross multiply
    219,426.57x = 302,808.51 × 118,824.57
  4. Step 4: Simplify right side
    219,426.57x = 35,981,090,993.09
  5. Step 5: Solve for x
    x = 35,981,090,993.09/219,426.57
  6. Step 6: Final answer
    x = 163,977.82

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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.