Home / 209,278.56-311,946.37-192,482.40

Finding the Fourth Proportional to 209,278.56, 311,946.37 and 192,482.40

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Solution

The fourth proportional to 209,278.56, 311,946.37 and 192,482.40 is: 286,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278.56 : 311,946.37 = 192,482.40 : x
  2. Step 2: Convert to fraction form
    209,278.56/311,946.37 = 192,482.40/x
  3. Step 3: Cross multiply
    209,278.56x = 311,946.37 × 192,482.40
  4. Step 4: Simplify right side
    209,278.56x = 60,044,185,968.89
  5. Step 5: Solve for x
    x = 60,044,185,968.89/209,278.56
  6. Step 6: Final answer
    x = 286,910.36

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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.