Home / 209,905.80-314,858.70-198,533.40

Finding the Fourth Proportional to 209,905.80, 314,858.70 and 198,533.40

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Solution

The fourth proportional to 209,905.80, 314,858.70 and 198,533.40 is: 297,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,905.80 : 314,858.70 = 198,533.40 : x
  2. Step 2: Convert to fraction form
    209,905.80/314,858.70 = 198,533.40/x
  3. Step 3: Cross multiply
    209,905.80x = 314,858.70 × 198,533.40
  4. Step 4: Simplify right side
    209,905.80x = 62,509,968,230.58
  5. Step 5: Solve for x
    x = 62,509,968,230.58/209,905.80
  6. Step 6: Final answer
    x = 297,800.10

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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.