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Finding the Fourth Proportional to 339,866.76, 468,822.36 and 210,746.28

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Solution

The fourth proportional to 339,866.76, 468,822.36 and 210,746.28 is: 290,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,866.76 : 468,822.36 = 210,746.28 : x
  2. Step 2: Convert to fraction form
    339,866.76/468,822.36 = 210,746.28/x
  3. Step 3: Cross multiply
    339,866.76x = 468,822.36 × 210,746.28
  4. Step 4: Simplify right side
    339,866.76x = 98,802,568,350.82
  5. Step 5: Solve for x
    x = 98,802,568,350.82/339,866.76
  6. Step 6: Final answer
    x = 290,709.71

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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.