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Finding the Fourth Proportional to 259,482.72, 389,082.78 and 117,161.22

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Solution

The fourth proportional to 259,482.72, 389,082.78 and 117,161.22 is: 175,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,482.72 : 389,082.78 = 117,161.22 : x
  2. Step 2: Convert to fraction form
    259,482.72/389,082.78 = 117,161.22/x
  3. Step 3: Cross multiply
    259,482.72x = 389,082.78 × 117,161.22
  4. Step 4: Simplify right side
    259,482.72x = 45,585,413,185.79
  5. Step 5: Solve for x
    x = 45,585,413,185.79/259,482.72
  6. Step 6: Final answer
    x = 175,678.03

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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.