Home / 308,848.18-426,261.48-211,972.43

Finding the Fourth Proportional to 308,848.18, 426,261.48 and 211,972.43

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Solution

The fourth proportional to 308,848.18, 426,261.48 and 211,972.43 is: 292,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,848.18 : 426,261.48 = 211,972.43 : x
  2. Step 2: Convert to fraction form
    308,848.18/426,261.48 = 211,972.43/x
  3. Step 3: Cross multiply
    308,848.18x = 426,261.48 × 211,972.43
  4. Step 4: Simplify right side
    308,848.18x = 90,355,682,591.65
  5. Step 5: Solve for x
    x = 90,355,682,591.65/308,848.18
  6. Step 6: Final answer
    x = 292,556.95

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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.