Home / 312,182.52-430,811.84-168,942.56

Finding the Fourth Proportional to 312,182.52, 430,811.84 and 168,942.56

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Solution

The fourth proportional to 312,182.52, 430,811.84 and 168,942.56 is: 233,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,182.52 : 430,811.84 = 168,942.56 : x
  2. Step 2: Convert to fraction form
    312,182.52/430,811.84 = 168,942.56/x
  3. Step 3: Cross multiply
    312,182.52x = 430,811.84 × 168,942.56
  4. Step 4: Simplify right side
    312,182.52x = 72,782,455,127.91
  5. Step 5: Solve for x
    x = 72,782,455,127.91/312,182.52
  6. Step 6: Final answer
    x = 233,140.71

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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.