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Finding the Fourth Proportional to 259,511.80, 388,806.90 and 160,900.60

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Solution

The fourth proportional to 259,511.80, 388,806.90 and 160,900.60 is: 241,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,511.80 : 388,806.90 = 160,900.60 : x
  2. Step 2: Convert to fraction form
    259,511.80/388,806.90 = 160,900.60/x
  3. Step 3: Cross multiply
    259,511.80x = 388,806.90 × 160,900.60
  4. Step 4: Simplify right side
    259,511.80x = 62,559,263,494.14
  5. Step 5: Solve for x
    x = 62,559,263,494.14/259,511.80
  6. Step 6: Final answer
    x = 241,065.20

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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.