Home / 259,269.40-388,904.10-161,923.60

Finding the Fourth Proportional to 259,269.40, 388,904.10 and 161,923.60

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Solution

The fourth proportional to 259,269.40, 388,904.10 and 161,923.60 is: 242,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,269.40 : 388,904.10 = 161,923.60 : x
  2. Step 2: Convert to fraction form
    259,269.40/388,904.10 = 161,923.60/x
  3. Step 3: Cross multiply
    259,269.40x = 388,904.10 × 161,923.60
  4. Step 4: Simplify right side
    259,269.40x = 62,972,751,926.76
  5. Step 5: Solve for x
    x = 62,972,751,926.76/259,269.40
  6. Step 6: Final answer
    x = 242,885.40

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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.