Home / 289,845.44-399,986.34-160,803.48

Finding the Fourth Proportional to 289,845.44, 399,986.34 and 160,803.48

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Solution

The fourth proportional to 289,845.44, 399,986.34 and 160,803.48 is: 221,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,845.44 : 399,986.34 = 160,803.48 : x
  2. Step 2: Convert to fraction form
    289,845.44/399,986.34 = 160,803.48/x
  3. Step 3: Cross multiply
    289,845.44x = 399,986.34 × 160,803.48
  4. Step 4: Simplify right side
    289,845.44x = 64,319,194,081.28
  5. Step 5: Solve for x
    x = 64,319,194,081.28/289,845.44
  6. Step 6: Final answer
    x = 221,908.60

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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.