Home / 209,256.60-288,775.26-123,219.30

Finding the Fourth Proportional to 209,256.60, 288,775.26 and 123,219.30

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Solution

The fourth proportional to 209,256.60, 288,775.26 and 123,219.30 is: 170,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,256.60 : 288,775.26 = 123,219.30 : x
  2. Step 2: Convert to fraction form
    209,256.60/288,775.26 = 123,219.30/x
  3. Step 3: Cross multiply
    209,256.60x = 288,775.26 × 123,219.30
  4. Step 4: Simplify right side
    209,256.60x = 35,582,685,394.52
  5. Step 5: Solve for x
    x = 35,582,685,394.52/209,256.60
  6. Step 6: Final answer
    x = 170,043.31

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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.