Home / 277,631.11-383,139.80-170,309.55

Finding the Fourth Proportional to 277,631.11, 383,139.80 and 170,309.55

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Solution

The fourth proportional to 277,631.11, 383,139.80 and 170,309.55 is: 235,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,631.11 : 383,139.80 = 170,309.55 : x
  2. Step 2: Convert to fraction form
    277,631.11/383,139.80 = 170,309.55/x
  3. Step 3: Cross multiply
    277,631.11x = 383,139.80 × 170,309.55
  4. Step 4: Simplify right side
    277,631.11x = 65,252,366,073.54
  5. Step 5: Solve for x
    x = 65,252,366,073.54/277,631.11
  6. Step 6: Final answer
    x = 235,032.62

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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.