Home / 251,391.32-346,912.79-142,505.72

Finding the Fourth Proportional to 251,391.32, 346,912.79 and 142,505.72

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Solution

The fourth proportional to 251,391.32, 346,912.79 and 142,505.72 is: 196,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,391.32 : 346,912.79 = 142,505.72 : x
  2. Step 2: Convert to fraction form
    251,391.32/346,912.79 = 142,505.72/x
  3. Step 3: Cross multiply
    251,391.32x = 346,912.79 × 142,505.72
  4. Step 4: Simplify right side
    251,391.32x = 49,437,056,916.16
  5. Step 5: Solve for x
    x = 49,437,056,916.16/251,391.32
  6. Step 6: Final answer
    x = 196,653.79

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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.