Home / 371,664.70-512,853.78-218,669.25

Finding the Fourth Proportional to 371,664.70, 512,853.78 and 218,669.25

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Solution

The fourth proportional to 371,664.70, 512,853.78 and 218,669.25 is: 301,737.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,664.70 : 512,853.78 = 218,669.25 : x
  2. Step 2: Convert to fraction form
    371,664.70/512,853.78 = 218,669.25/x
  3. Step 3: Cross multiply
    371,664.70x = 512,853.78 × 218,669.25
  4. Step 4: Simplify right side
    371,664.70x = 112,145,348,618.26
  5. Step 5: Solve for x
    x = 112,145,348,618.26/371,664.70
  6. Step 6: Final answer
    x = 301,737.96

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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.