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Finding the Fourth Proportional to 247,855.49, 342,039.91 and 134,678.24

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Solution

The fourth proportional to 247,855.49, 342,039.91 and 134,678.24 is: 185,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,855.49 : 342,039.91 = 134,678.24 : x
  2. Step 2: Convert to fraction form
    247,855.49/342,039.91 = 134,678.24/x
  3. Step 3: Cross multiply
    247,855.49x = 342,039.91 × 134,678.24
  4. Step 4: Simplify right side
    247,855.49x = 46,065,333,088.56
  5. Step 5: Solve for x
    x = 46,065,333,088.56/247,855.49
  6. Step 6: Final answer
    x = 185,855.61

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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.