Home / 259,336.08-389,069.72-72,347.44

Finding the Fourth Proportional to 259,336.08, 389,069.72 and 72,347.44

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Solution

The fourth proportional to 259,336.08, 389,069.72 and 72,347.44 is: 108,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,336.08 : 389,069.72 = 72,347.44 : x
  2. Step 2: Convert to fraction form
    259,336.08/389,069.72 = 72,347.44/x
  3. Step 3: Cross multiply
    259,336.08x = 389,069.72 × 72,347.44
  4. Step 4: Simplify right side
    259,336.08x = 28,148,198,223.52
  5. Step 5: Solve for x
    x = 28,148,198,223.52/259,336.08
  6. Step 6: Final answer
    x = 108,539.46

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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.