Home / 289,847.07-399,988.58-160,805.11

Finding the Fourth Proportional to 289,847.07, 399,988.58 and 160,805.11

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Solution

The fourth proportional to 289,847.07, 399,988.58 and 160,805.11 is: 221,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,847.07 : 399,988.58 = 160,805.11 : x
  2. Step 2: Convert to fraction form
    289,847.07/399,988.58 = 160,805.11/x
  3. Step 3: Cross multiply
    289,847.07x = 399,988.58 × 160,805.11
  4. Step 4: Simplify right side
    289,847.07x = 64,320,205,203.69
  5. Step 5: Solve for x
    x = 64,320,205,203.69/289,847.07
  6. Step 6: Final answer
    x = 221,910.84

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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.