Home / 197,999.20-297,066.80-57,778.40

Finding the Fourth Proportional to 197,999.20, 297,066.80 and 57,778.40

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Solution

The fourth proportional to 197,999.20, 297,066.80 and 57,778.40 is: 86,687.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,999.20 : 297,066.80 = 57,778.40 : x
  2. Step 2: Convert to fraction form
    197,999.20/297,066.80 = 57,778.40/x
  3. Step 3: Cross multiply
    197,999.20x = 297,066.80 × 57,778.40
  4. Step 4: Simplify right side
    197,999.20x = 17,164,044,397.12
  5. Step 5: Solve for x
    x = 17,164,044,397.12/197,999.20
  6. Step 6: Final answer
    x = 86,687.44

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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.