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Finding the Fourth Proportional to 371,448.36, 512,644.07 and 218,479.25

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Solution

The fourth proportional to 371,448.36, 512,644.07 and 218,479.25 is: 301,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,448.36 : 512,644.07 = 218,479.25 : x
  2. Step 2: Convert to fraction form
    371,448.36/512,644.07 = 218,479.25/x
  3. Step 3: Cross multiply
    371,448.36x = 512,644.07 × 218,479.25
  4. Step 4: Simplify right side
    371,448.36x = 112,002,091,930.55
  5. Step 5: Solve for x
    x = 112,002,091,930.55/371,448.36
  6. Step 6: Final answer
    x = 301,528.03

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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.