Home / 259,336.34-388,337.61-208,496.42

Finding the Fourth Proportional to 259,336.34, 388,337.61 and 208,496.42

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Solution

The fourth proportional to 259,336.34, 388,337.61 and 208,496.42 is: 312,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,336.34 : 388,337.61 = 208,496.42 : x
  2. Step 2: Convert to fraction form
    259,336.34/388,337.61 = 208,496.42/x
  3. Step 3: Cross multiply
    259,336.34x = 388,337.61 × 208,496.42
  4. Step 4: Simplify right side
    259,336.34x = 80,967,001,436.36
  5. Step 5: Solve for x
    x = 80,967,001,436.36/259,336.34
  6. Step 6: Final answer
    x = 312,208.47

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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.