Home / 209,279.06-311,947.12-192,482.90

Finding the Fourth Proportional to 209,279.06, 311,947.12 and 192,482.90

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Solution

The fourth proportional to 209,279.06, 311,947.12 and 192,482.90 is: 286,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279.06 : 311,947.12 = 192,482.90 : x
  2. Step 2: Convert to fraction form
    209,279.06/311,947.12 = 192,482.90/x
  3. Step 3: Cross multiply
    209,279.06x = 311,947.12 × 192,482.90
  4. Step 4: Simplify right side
    209,279.06x = 60,044,485,341.83
  5. Step 5: Solve for x
    x = 60,044,485,341.83/209,279.06
  6. Step 6: Final answer
    x = 286,911.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.