Home / 248,319.72-342,682.74-135,143.64

Finding the Fourth Proportional to 248,319.72, 342,682.74 and 135,143.64

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Solution

The fourth proportional to 248,319.72, 342,682.74 and 135,143.64 is: 186,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,319.72 : 342,682.74 = 135,143.64 : x
  2. Step 2: Convert to fraction form
    248,319.72/342,682.74 = 135,143.64/x
  3. Step 3: Cross multiply
    248,319.72x = 342,682.74 × 135,143.64
  4. Step 4: Simplify right side
    248,319.72x = 46,311,392,848.77
  5. Step 5: Solve for x
    x = 46,311,392,848.77/248,319.72
  6. Step 6: Final answer
    x = 186,499.05

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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.