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Finding the Fourth Proportional to 260,383.80, 390,571.56 and 82,888.23

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Solution

The fourth proportional to 260,383.80, 390,571.56 and 82,888.23 is: 124,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,383.80 : 390,571.56 = 82,888.23 : x
  2. Step 2: Convert to fraction form
    260,383.80/390,571.56 = 82,888.23/x
  3. Step 3: Cross multiply
    260,383.80x = 390,571.56 × 82,888.23
  4. Step 4: Simplify right side
    260,383.80x = 32,373,785,296.74
  5. Step 5: Solve for x
    x = 32,373,785,296.74/260,383.80
  6. Step 6: Final answer
    x = 124,331.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.