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Finding the Fourth Proportional to 248,265, 342,611.17 and 135,087.75

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Solution

The fourth proportional to 248,265, 342,611.17 and 135,087.75 is: 186,424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,265 : 342,611.17 = 135,087.75 : x
  2. Step 2: Convert to fraction form
    248,265/342,611.17 = 135,087.75/x
  3. Step 3: Cross multiply
    248,265x = 342,611.17 × 135,087.75
  4. Step 4: Simplify right side
    248,265x = 46,282,571,742.45
  5. Step 5: Solve for x
    x = 46,282,571,742.45/248,265
  6. Step 6: Final answer
    x = 186,424.07

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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.