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Finding the Fourth Proportional to 198,005.40, 277,907.40 and 198,005.40

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Solution

The fourth proportional to 198,005.40, 277,907.40 and 198,005.40 is: 277,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,005.40 : 277,907.40 = 198,005.40 : x
  2. Step 2: Convert to fraction form
    198,005.40/277,907.40 = 198,005.40/x
  3. Step 3: Cross multiply
    198,005.40x = 277,907.40 × 198,005.40
  4. Step 4: Simplify right side
    198,005.40x = 55,027,165,899.96
  5. Step 5: Solve for x
    x = 55,027,165,899.96/198,005.40
  6. Step 6: Final answer
    x = 277,907.40

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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.