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Finding the Fourth Proportional to 340,371.33, 469,708.55 and 187,406.33

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Solution

The fourth proportional to 340,371.33, 469,708.55 and 187,406.33 is: 258,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,371.33 : 469,708.55 = 187,406.33 : x
  2. Step 2: Convert to fraction form
    340,371.33/469,708.55 = 187,406.33/x
  3. Step 3: Cross multiply
    340,371.33x = 469,708.55 × 187,406.33
  4. Step 4: Simplify right side
    340,371.33x = 88,026,352,942.32
  5. Step 5: Solve for x
    x = 88,026,352,942.32/340,371.33
  6. Step 6: Final answer
    x = 258,618.59

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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.