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Finding the Fourth Proportional to 223,220.10, 311,808.30 and 223,220.10

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Solution

The fourth proportional to 223,220.10, 311,808.30 and 223,220.10 is: 311,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,220.10 : 311,808.30 = 223,220.10 : x
  2. Step 2: Convert to fraction form
    223,220.10/311,808.30 = 223,220.10/x
  3. Step 3: Cross multiply
    223,220.10x = 311,808.30 × 223,220.10
  4. Step 4: Simplify right side
    223,220.10x = 69,601,879,906.83
  5. Step 5: Solve for x
    x = 69,601,879,906.83/223,220.10
  6. Step 6: Final answer
    x = 311,808.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.