Home / 405,288.96-559,368-235,621.44

Finding the Fourth Proportional to 405,288.96, 559,368 and 235,621.44

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Solution

The fourth proportional to 405,288.96, 559,368 and 235,621.44 is: 325,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,288.96 : 559,368 = 235,621.44 : x
  2. Step 2: Convert to fraction form
    405,288.96/559,368 = 235,621.44/x
  3. Step 3: Cross multiply
    405,288.96x = 559,368 × 235,621.44
  4. Step 4: Simplify right side
    405,288.96x = 131,799,093,649.92
  5. Step 5: Solve for x
    x = 131,799,093,649.92/405,288.96
  6. Step 6: Final answer
    x = 325,197.84

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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.