Home / 311,629.41-430,082.75-180,835.87

Finding the Fourth Proportional to 311,629.41, 430,082.75 and 180,835.87

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Solution

The fourth proportional to 311,629.41, 430,082.75 and 180,835.87 is: 249,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,629.41 : 430,082.75 = 180,835.87 : x
  2. Step 2: Convert to fraction form
    311,629.41/430,082.75 = 180,835.87/x
  3. Step 3: Cross multiply
    311,629.41x = 430,082.75 × 180,835.87
  4. Step 4: Simplify right side
    311,629.41x = 77,774,389,257.94
  5. Step 5: Solve for x
    x = 77,774,389,257.94/311,629.41
  6. Step 6: Final answer
    x = 249,573.33

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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.