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Finding the Fourth Proportional to 375,540.56, 518,266.74 and 214,447.40

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Solution

The fourth proportional to 375,540.56, 518,266.74 and 214,447.40 is: 295,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,540.56 : 518,266.74 = 214,447.40 : x
  2. Step 2: Convert to fraction form
    375,540.56/518,266.74 = 214,447.40/x
  3. Step 3: Cross multiply
    375,540.56x = 518,266.74 × 214,447.40
  4. Step 4: Simplify right side
    375,540.56x = 111,140,954,899.48
  5. Step 5: Solve for x
    x = 111,140,954,899.48/375,540.56
  6. Step 6: Final answer
    x = 295,949.27

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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.