Home / 248,415.12-342,819-135,244.08

Finding the Fourth Proportional to 248,415.12, 342,819 and 135,244.08

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Solution

The fourth proportional to 248,415.12, 342,819 and 135,244.08 is: 186,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,415.12 : 342,819 = 135,244.08 : x
  2. Step 2: Convert to fraction form
    248,415.12/342,819 = 135,244.08/x
  3. Step 3: Cross multiply
    248,415.12x = 342,819 × 135,244.08
  4. Step 4: Simplify right side
    248,415.12x = 46,364,240,261.52
  5. Step 5: Solve for x
    x = 46,364,240,261.52/248,415.12
  6. Step 6: Final answer
    x = 186,640.17

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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.