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Finding the Fourth Proportional to 248,161, 342,463.80 and 134,984.56

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Solution

The fourth proportional to 248,161, 342,463.80 and 134,984.56 is: 186,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,161 : 342,463.80 = 134,984.56 : x
  2. Step 2: Convert to fraction form
    248,161/342,463.80 = 134,984.56/x
  3. Step 3: Cross multiply
    248,161x = 342,463.80 × 134,984.56
  4. Step 4: Simplify right side
    248,161x = 46,227,325,358.93
  5. Step 5: Solve for x
    x = 46,227,325,358.93/248,161
  6. Step 6: Final answer
    x = 186,279.57

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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.