Home / 210,128.05-314,909.79-196,676.38

Finding the Fourth Proportional to 210,128.05, 314,909.79 and 196,676.38

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Solution

The fourth proportional to 210,128.05, 314,909.79 and 196,676.38 is: 294,750.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,128.05 : 314,909.79 = 196,676.38 : x
  2. Step 2: Convert to fraction form
    210,128.05/314,909.79 = 196,676.38/x
  3. Step 3: Cross multiply
    210,128.05x = 314,909.79 × 196,676.38
  4. Step 4: Simplify right side
    210,128.05x = 61,935,317,523.76
  5. Step 5: Solve for x
    x = 61,935,317,523.76/210,128.05
  6. Step 6: Final answer
    x = 294,750.36

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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.