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Finding the Fourth Proportional to 340,285.88, 469,594.52 and 189,418.52

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Solution

The fourth proportional to 340,285.88, 469,594.52 and 189,418.52 is: 261,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,285.88 : 469,594.52 = 189,418.52 : x
  2. Step 2: Convert to fraction form
    340,285.88/469,594.52 = 189,418.52/x
  3. Step 3: Cross multiply
    340,285.88x = 469,594.52 × 189,418.52
  4. Step 4: Simplify right side
    340,285.88x = 88,949,895,683.45
  5. Step 5: Solve for x
    x = 88,949,895,683.45/340,285.88
  6. Step 6: Final answer
    x = 261,397.55

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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.