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Finding the Fourth Proportional to 247,858.69, 342,047.15 and 134,681.44

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Solution

The fourth proportional to 247,858.69, 342,047.15 and 134,681.44 is: 185,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,858.69 : 342,047.15 = 134,681.44 : x
  2. Step 2: Convert to fraction form
    247,858.69/342,047.15 = 134,681.44/x
  3. Step 3: Cross multiply
    247,858.69x = 342,047.15 × 134,681.44
  4. Step 4: Simplify right side
    247,858.69x = 46,067,402,709.90
  5. Step 5: Solve for x
    x = 46,067,402,709.90/247,858.69
  6. Step 6: Final answer
    x = 185,861.56

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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.