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Finding the Fourth Proportional to 248,367.01, 342,736.95 and 140,930.64

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Solution

The fourth proportional to 248,367.01, 342,736.95 and 140,930.64 is: 194,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,367.01 : 342,736.95 = 140,930.64 : x
  2. Step 2: Convert to fraction form
    248,367.01/342,736.95 = 140,930.64/x
  3. Step 3: Cross multiply
    248,367.01x = 342,736.95 × 140,930.64
  4. Step 4: Simplify right side
    248,367.01x = 48,302,137,715.15
  5. Step 5: Solve for x
    x = 48,302,137,715.15/248,367.01
  6. Step 6: Final answer
    x = 194,478.88

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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.