Home / 251,730.48-347,388.81-138,553.23

Finding the Fourth Proportional to 251,730.48, 347,388.81 and 138,553.23

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Solution

The fourth proportional to 251,730.48, 347,388.81 and 138,553.23 is: 191,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,730.48 : 347,388.81 = 138,553.23 : x
  2. Step 2: Convert to fraction form
    251,730.48/347,388.81 = 138,553.23/x
  3. Step 3: Cross multiply
    251,730.48x = 347,388.81 × 138,553.23
  4. Step 4: Simplify right side
    251,730.48x = 48,131,841,691.36
  5. Step 5: Solve for x
    x = 48,131,841,691.36/251,730.48
  6. Step 6: Final answer
    x = 191,203.87

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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.