Home / 312,480.36-430,900.38-267,307.83

Finding the Fourth Proportional to 312,480.36, 430,900.38 and 267,307.83

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Solution

The fourth proportional to 312,480.36, 430,900.38 and 267,307.83 is: 368,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,480.36 : 430,900.38 = 267,307.83 : x
  2. Step 2: Convert to fraction form
    312,480.36/430,900.38 = 267,307.83/x
  3. Step 3: Cross multiply
    312,480.36x = 430,900.38 × 267,307.83
  4. Step 4: Simplify right side
    312,480.36x = 115,183,045,523.98
  5. Step 5: Solve for x
    x = 115,183,045,523.98/312,480.36
  6. Step 6: Final answer
    x = 368,608.91

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1.5x scale

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.