Home / 240,454.49-331,798.34-138,513.29

Finding the Fourth Proportional to 240,454.49, 331,798.34 and 138,513.29

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Solution

The fourth proportional to 240,454.49, 331,798.34 and 138,513.29 is: 191,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,454.49 : 331,798.34 = 138,513.29 : x
  2. Step 2: Convert to fraction form
    240,454.49/331,798.34 = 138,513.29/x
  3. Step 3: Cross multiply
    240,454.49x = 331,798.34 × 138,513.29
  4. Step 4: Simplify right side
    240,454.49x = 45,958,478,377.23
  5. Step 5: Solve for x
    x = 45,958,478,377.23/240,454.49
  6. Step 6: Final answer
    x = 191,131.72

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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.