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Finding the Fourth Proportional to 382,448.80, 573,673.20 and 256,477.60

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Solution

The fourth proportional to 382,448.80, 573,673.20 and 256,477.60 is: 384,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,448.80 : 573,673.20 = 256,477.60 : x
  2. Step 2: Convert to fraction form
    382,448.80/573,673.20 = 256,477.60/x
  3. Step 3: Cross multiply
    382,448.80x = 573,673.20 × 256,477.60
  4. Step 4: Simplify right side
    382,448.80x = 147,134,325,520.32
  5. Step 5: Solve for x
    x = 147,134,325,520.32/382,448.80
  6. Step 6: Final answer
    x = 384,716.40

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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.