Home / 248,579.12-343,047.48-135,412.40

Finding the Fourth Proportional to 248,579.12, 343,047.48 and 135,412.40

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Solution

The fourth proportional to 248,579.12, 343,047.48 and 135,412.40 is: 186,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,579.12 : 343,047.48 = 135,412.40 : x
  2. Step 2: Convert to fraction form
    248,579.12/343,047.48 = 135,412.40/x
  3. Step 3: Cross multiply
    248,579.12x = 343,047.48 × 135,412.40
  4. Step 4: Simplify right side
    248,579.12x = 46,452,882,580.75
  5. Step 5: Solve for x
    x = 46,452,882,580.75/248,579.12
  6. Step 6: Final answer
    x = 186,873.63

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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.