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Finding the Fourth Proportional to 248,393.64, 342,785.34 and 135,216.12

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Solution

The fourth proportional to 248,393.64, 342,785.34 and 135,216.12 is: 186,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,393.64 : 342,785.34 = 135,216.12 : x
  2. Step 2: Convert to fraction form
    248,393.64/342,785.34 = 135,216.12/x
  3. Step 3: Cross multiply
    248,393.64x = 342,785.34 × 135,216.12
  4. Step 4: Simplify right side
    248,393.64x = 46,350,103,667.68
  5. Step 5: Solve for x
    x = 46,350,103,667.68/248,393.64
  6. Step 6: Final answer
    x = 186,599.40

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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.