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Finding the Fourth Proportional to 339,869.60, 469,010.64 and 186,907.74

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Solution

The fourth proportional to 339,869.60, 469,010.64 and 186,907.74 is: 257,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,869.60 : 469,010.64 = 186,907.74 : x
  2. Step 2: Convert to fraction form
    339,869.60/469,010.64 = 186,907.74/x
  3. Step 3: Cross multiply
    339,869.60x = 469,010.64 × 186,907.74
  4. Step 4: Simplify right side
    339,869.60x = 87,661,718,233.49
  5. Step 5: Solve for x
    x = 87,661,718,233.49/339,869.60
  6. Step 6: Final answer
    x = 257,927.51

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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.