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Finding the Fourth Proportional to 259,357.44, 388,880.40 and 101,397.68

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Solution

The fourth proportional to 259,357.44, 388,880.40 and 101,397.68 is: 152,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,357.44 : 388,880.40 = 101,397.68 : x
  2. Step 2: Convert to fraction form
    259,357.44/388,880.40 = 101,397.68/x
  3. Step 3: Cross multiply
    259,357.44x = 388,880.40 × 101,397.68
  4. Step 4: Simplify right side
    259,357.44x = 39,431,570,357.47
  5. Step 5: Solve for x
    x = 39,431,570,357.47/259,357.44
  6. Step 6: Final answer
    x = 152,035.62

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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.