Home / 209,858.07-288,940.13-190,680.45

Finding the Fourth Proportional to 209,858.07, 288,940.13 and 190,680.45

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Solution

The fourth proportional to 209,858.07, 288,940.13 and 190,680.45 is: 262,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,858.07 : 288,940.13 = 190,680.45 : x
  2. Step 2: Convert to fraction form
    209,858.07/288,940.13 = 190,680.45/x
  3. Step 3: Cross multiply
    209,858.07x = 288,940.13 × 190,680.45
  4. Step 4: Simplify right side
    209,858.07x = 55,095,232,689.58
  5. Step 5: Solve for x
    x = 55,095,232,689.58/209,858.07
  6. Step 6: Final answer
    x = 262,535.68

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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.