Home / 345,255.36-517,943.76-142,850.88

Finding the Fourth Proportional to 345,255.36, 517,943.76 and 142,850.88

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Solution

The fourth proportional to 345,255.36, 517,943.76 and 142,850.88 is: 214,301.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,255.36 : 517,943.76 = 142,850.88 : x
  2. Step 2: Convert to fraction form
    345,255.36/517,943.76 = 142,850.88/x
  3. Step 3: Cross multiply
    345,255.36x = 517,943.76 × 142,850.88
  4. Step 4: Simplify right side
    345,255.36x = 73,988,721,906.51
  5. Step 5: Solve for x
    x = 73,988,721,906.51/345,255.36
  6. Step 6: Final answer
    x = 214,301.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.