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Finding the Fourth Proportional to 454,479.40, 681,798.30 and 188,093.80

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Solution

The fourth proportional to 454,479.40, 681,798.30 and 188,093.80 is: 282,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,479.40 : 681,798.30 = 188,093.80 : x
  2. Step 2: Convert to fraction form
    454,479.40/681,798.30 = 188,093.80/x
  3. Step 3: Cross multiply
    454,479.40x = 681,798.30 × 188,093.80
  4. Step 4: Simplify right side
    454,479.40x = 128,242,033,080.54
  5. Step 5: Solve for x
    x = 128,242,033,080.54/454,479.40
  6. Step 6: Final answer
    x = 282,173.48

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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.