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Finding the Fourth Proportional to 248,651.51, 343,140.71 and 135,474.26

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Solution

The fourth proportional to 248,651.51, 343,140.71 and 135,474.26 is: 186,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,651.51 : 343,140.71 = 135,474.26 : x
  2. Step 2: Convert to fraction form
    248,651.51/343,140.71 = 135,474.26/x
  3. Step 3: Cross multiply
    248,651.51x = 343,140.71 × 135,474.26
  4. Step 4: Simplify right side
    248,651.51x = 46,486,731,370.05
  5. Step 5: Solve for x
    x = 46,486,731,370.05/248,651.51
  6. Step 6: Final answer
    x = 186,955.36

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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.