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Finding the Fourth Proportional to 247,855.99, 342,040.60 and 134,678.74

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Solution

The fourth proportional to 247,855.99, 342,040.60 and 134,678.74 is: 185,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,855.99 : 342,040.60 = 134,678.74 : x
  2. Step 2: Convert to fraction form
    247,855.99/342,040.60 = 134,678.74/x
  3. Step 3: Cross multiply
    247,855.99x = 342,040.60 × 134,678.74
  4. Step 4: Simplify right side
    247,855.99x = 46,065,597,036.84
  5. Step 5: Solve for x
    x = 46,065,597,036.84/247,855.99
  6. Step 6: Final answer
    x = 185,856.30

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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.