Home / 209,942.72-289,168.08-174,017.60

Finding the Fourth Proportional to 209,942.72, 289,168.08 and 174,017.60

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Solution

The fourth proportional to 209,942.72, 289,168.08 and 174,017.60 is: 239,686.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,942.72 : 289,168.08 = 174,017.60 : x
  2. Step 2: Convert to fraction form
    209,942.72/289,168.08 = 174,017.60/x
  3. Step 3: Cross multiply
    209,942.72x = 289,168.08 × 174,017.60
  4. Step 4: Simplify right side
    209,942.72x = 50,320,335,278.21
  5. Step 5: Solve for x
    x = 50,320,335,278.21/209,942.72
  6. Step 6: Final answer
    x = 239,686.02

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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.