Home / 290,065.91-400,284.74-160,996.85

Finding the Fourth Proportional to 290,065.91, 400,284.74 and 160,996.85

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Solution

The fourth proportional to 290,065.91, 400,284.74 and 160,996.85 is: 222,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,065.91 : 400,284.74 = 160,996.85 : x
  2. Step 2: Convert to fraction form
    290,065.91/400,284.74 = 160,996.85/x
  3. Step 3: Cross multiply
    290,065.91x = 400,284.74 × 160,996.85
  4. Step 4: Simplify right side
    290,065.91x = 64,444,580,644.14
  5. Step 5: Solve for x
    x = 64,444,580,644.14/290,065.91
  6. Step 6: Final answer
    x = 222,172.20

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1.5x scale

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.