Home / 248,421-342,821.79-135,244.56

Finding the Fourth Proportional to 248,421, 342,821.79 and 135,244.56

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Solution

The fourth proportional to 248,421, 342,821.79 and 135,244.56 is: 186,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,421 : 342,821.79 = 135,244.56 : x
  2. Step 2: Convert to fraction form
    248,421/342,821.79 = 135,244.56/x
  3. Step 3: Cross multiply
    248,421x = 342,821.79 × 135,244.56
  4. Step 4: Simplify right side
    248,421x = 46,364,782,146.96
  5. Step 5: Solve for x
    x = 46,364,782,146.96/248,421
  6. Step 6: Final answer
    x = 186,637.93

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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.