Home / 289,908.18-400,072.61-160,866.27

Finding the Fourth Proportional to 289,908.18, 400,072.61 and 160,866.27

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Solution

The fourth proportional to 289,908.18, 400,072.61 and 160,866.27 is: 221,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,908.18 : 400,072.61 = 160,866.27 : x
  2. Step 2: Convert to fraction form
    289,908.18/400,072.61 = 160,866.27/x
  3. Step 3: Cross multiply
    289,908.18x = 400,072.61 × 160,866.27
  4. Step 4: Simplify right side
    289,908.18x = 64,358,188,902.03
  5. Step 5: Solve for x
    x = 64,358,188,902.03/289,908.18
  6. Step 6: Final answer
    x = 221,995.08

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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.