Home / 311,261.16-429,556.39-190,364.48

Finding the Fourth Proportional to 311,261.16, 429,556.39 and 190,364.48

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Solution

The fourth proportional to 311,261.16, 429,556.39 and 190,364.48 is: 262,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,261.16 : 429,556.39 = 190,364.48 : x
  2. Step 2: Convert to fraction form
    311,261.16/429,556.39 = 190,364.48/x
  3. Step 3: Cross multiply
    311,261.16x = 429,556.39 × 190,364.48
  4. Step 4: Simplify right side
    311,261.16x = 81,772,281,287.23
  5. Step 5: Solve for x
    x = 81,772,281,287.23/311,261.16
  6. Step 6: Final answer
    x = 262,712.77

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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.