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Finding the Fourth Proportional to 220,630.57, 304,457.75 and 123,825.41

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Solution

The fourth proportional to 220,630.57, 304,457.75 and 123,825.41 is: 170,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,630.57 : 304,457.75 = 123,825.41 : x
  2. Step 2: Convert to fraction form
    220,630.57/304,457.75 = 123,825.41/x
  3. Step 3: Cross multiply
    220,630.57x = 304,457.75 × 123,825.41
  4. Step 4: Simplify right side
    220,630.57x = 37,699,605,721.43
  5. Step 5: Solve for x
    x = 37,699,605,721.43/220,630.57
  6. Step 6: Final answer
    x = 170,872.09

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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.