Home / 217,377.07-299,976.55-121,883.47

Finding the Fourth Proportional to 217,377.07, 299,976.55 and 121,883.47

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Solution

The fourth proportional to 217,377.07, 299,976.55 and 121,883.47 is: 168,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,377.07 : 299,976.55 = 121,883.47 : x
  2. Step 2: Convert to fraction form
    217,377.07/299,976.55 = 121,883.47/x
  3. Step 3: Cross multiply
    217,377.07x = 299,976.55 × 121,883.47
  4. Step 4: Simplify right side
    217,377.07x = 36,562,182,832.63
  5. Step 5: Solve for x
    x = 36,562,182,832.63/217,377.07
  6. Step 6: Final answer
    x = 168,197.05

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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.