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Finding the Fourth Proportional to 259,653.60, 389,480.40 and 254,404.80

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Solution

The fourth proportional to 259,653.60, 389,480.40 and 254,404.80 is: 381,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,653.60 : 389,480.40 = 254,404.80 : x
  2. Step 2: Convert to fraction form
    259,653.60/389,480.40 = 254,404.80/x
  3. Step 3: Cross multiply
    259,653.60x = 389,480.40 × 254,404.80
  4. Step 4: Simplify right side
    259,653.60x = 99,085,683,265.92
  5. Step 5: Solve for x
    x = 99,085,683,265.92/259,653.60
  6. Step 6: Final answer
    x = 381,607.20

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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.