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Finding the Fourth Proportional to 219,329.97, 302,672.75 and 123,840.69

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Solution

The fourth proportional to 219,329.97, 302,672.75 and 123,840.69 is: 170,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,329.97 : 302,672.75 = 123,840.69 : x
  2. Step 2: Convert to fraction form
    219,329.97/302,672.75 = 123,840.69/x
  3. Step 3: Cross multiply
    219,329.97x = 302,672.75 × 123,840.69
  4. Step 4: Simplify right side
    219,329.97x = 37,483,201,584.99
  5. Step 5: Solve for x
    x = 37,483,201,584.99/219,329.97
  6. Step 6: Final answer
    x = 170,898.68

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1.5x scale

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.