Home / 340,921.89-511,385.37-151,331.28

Finding the Fourth Proportional to 340,921.89, 511,385.37 and 151,331.28

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Solution

The fourth proportional to 340,921.89, 511,385.37 and 151,331.28 is: 226,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,921.89 : 511,385.37 = 151,331.28 : x
  2. Step 2: Convert to fraction form
    340,921.89/511,385.37 = 151,331.28/x
  3. Step 3: Cross multiply
    340,921.89x = 511,385.37 × 151,331.28
  4. Step 4: Simplify right side
    340,921.89x = 77,388,602,615.37
  5. Step 5: Solve for x
    x = 77,388,602,615.37/340,921.89
  6. Step 6: Final answer
    x = 226,998.05

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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.