Home / 287,889.60-397,358.82-196,160.52

Finding the Fourth Proportional to 287,889.60, 397,358.82 and 196,160.52

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Solution

The fourth proportional to 287,889.60, 397,358.82 and 196,160.52 is: 270,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,889.60 : 397,358.82 = 196,160.52 : x
  2. Step 2: Convert to fraction form
    287,889.60/397,358.82 = 196,160.52/x
  3. Step 3: Cross multiply
    287,889.60x = 397,358.82 × 196,160.52
  4. Step 4: Simplify right side
    287,889.60x = 77,946,112,757.79
  5. Step 5: Solve for x
    x = 77,946,112,757.79/287,889.60
  6. Step 6: Final answer
    x = 270,750.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.