Home / 280,118.69-386,577.46-157,649.32

Finding the Fourth Proportional to 280,118.69, 386,577.46 and 157,649.32

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Solution

The fourth proportional to 280,118.69, 386,577.46 and 157,649.32 is: 217,563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,118.69 : 386,577.46 = 157,649.32 : x
  2. Step 2: Convert to fraction form
    280,118.69/386,577.46 = 157,649.32/x
  3. Step 3: Cross multiply
    280,118.69x = 386,577.46 × 157,649.32
  4. Step 4: Simplify right side
    280,118.69x = 60,943,673,696.33
  5. Step 5: Solve for x
    x = 60,943,673,696.33/280,118.69
  6. Step 6: Final answer
    x = 217,563.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.