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Finding the Fourth Proportional to 247,886.88, 342,083.90 and 134,709.64

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Solution

The fourth proportional to 247,886.88, 342,083.90 and 134,709.64 is: 185,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,886.88 : 342,083.90 = 134,709.64 : x
  2. Step 2: Convert to fraction form
    247,886.88/342,083.90 = 134,709.64/x
  3. Step 3: Cross multiply
    247,886.88x = 342,083.90 × 134,709.64
  4. Step 4: Simplify right side
    247,886.88x = 46,081,999,018.80
  5. Step 5: Solve for x
    x = 46,081,999,018.80/247,886.88
  6. Step 6: Final answer
    x = 185,899.31

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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.