Home / 209,936.20-314,904.30-191,565.40

Finding the Fourth Proportional to 209,936.20, 314,904.30 and 191,565.40

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Solution

The fourth proportional to 209,936.20, 314,904.30 and 191,565.40 is: 287,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,936.20 : 314,904.30 = 191,565.40 : x
  2. Step 2: Convert to fraction form
    209,936.20/314,904.30 = 191,565.40/x
  3. Step 3: Cross multiply
    209,936.20x = 314,904.30 × 191,565.40
  4. Step 4: Simplify right side
    209,936.20x = 60,324,768,191.22
  5. Step 5: Solve for x
    x = 60,324,768,191.22/209,936.20
  6. Step 6: Final answer
    x = 287,348.10

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1.5x scale

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.