Home / 198,314.10-297,908.55-190,878.30

Finding the Fourth Proportional to 198,314.10, 297,908.55 and 190,878.30

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Solution

The fourth proportional to 198,314.10, 297,908.55 and 190,878.30 is: 286,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,314.10 : 297,908.55 = 190,878.30 : x
  2. Step 2: Convert to fraction form
    198,314.10/297,908.55 = 190,878.30/x
  3. Step 3: Cross multiply
    198,314.10x = 297,908.55 × 190,878.30
  4. Step 4: Simplify right side
    198,314.10x = 56,864,277,579.47
  5. Step 5: Solve for x
    x = 56,864,277,579.47/198,314.10
  6. Step 6: Final answer
    x = 286,738.45

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1.5x scale

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.