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Finding the Fourth Proportional to 247,878.89, 342,071.26 and 134,701.64

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Solution

The fourth proportional to 247,878.89, 342,071.26 and 134,701.64 is: 185,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,878.89 : 342,071.26 = 134,701.64 : x
  2. Step 2: Convert to fraction form
    247,878.89/342,071.26 = 134,701.64/x
  3. Step 3: Cross multiply
    247,878.89x = 342,071.26 × 134,701.64
  4. Step 4: Simplify right side
    247,878.89x = 46,077,557,671.76
  5. Step 5: Solve for x
    x = 46,077,557,671.76/247,878.89
  6. Step 6: Final answer
    x = 185,887.38

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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.