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Finding the Fourth Proportional to 247,986, 342,219.87 and 134,807.94

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Solution

The fourth proportional to 247,986, 342,219.87 and 134,807.94 is: 186,034.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,986 : 342,219.87 = 134,807.94 : x
  2. Step 2: Convert to fraction form
    247,986/342,219.87 = 134,807.94/x
  3. Step 3: Cross multiply
    247,986x = 342,219.87 × 134,807.94
  4. Step 4: Simplify right side
    247,986x = 46,133,955,701.77
  5. Step 5: Solve for x
    x = 46,133,955,701.77/247,986
  6. Step 6: Final answer
    x = 186,034.52

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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.