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Finding the Fourth Proportional to 196,838.56, 295,082.32 and 72,150.40

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Solution

The fourth proportional to 196,838.56, 295,082.32 and 72,150.40 is: 108,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,838.56 : 295,082.32 = 72,150.40 : x
  2. Step 2: Convert to fraction form
    196,838.56/295,082.32 = 72,150.40/x
  3. Step 3: Cross multiply
    196,838.56x = 295,082.32 × 72,150.40
  4. Step 4: Simplify right side
    196,838.56x = 21,290,307,420.93
  5. Step 5: Solve for x
    x = 21,290,307,420.93/196,838.56
  6. Step 6: Final answer
    x = 108,161.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.