Home / 505,532.32-758,532.90-221,185.38

Finding the Fourth Proportional to 505,532.32, 758,532.90 and 221,185.38

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Solution

The fourth proportional to 505,532.32, 758,532.90 and 221,185.38 is: 331,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,532.32 : 758,532.90 = 221,185.38 : x
  2. Step 2: Convert to fraction form
    505,532.32/758,532.90 = 221,185.38/x
  3. Step 3: Cross multiply
    505,532.32x = 758,532.90 × 221,185.38
  4. Step 4: Simplify right side
    505,532.32x = 167,776,387,729.00
  5. Step 5: Solve for x
    x = 167,776,387,729.00/505,532.32
  6. Step 6: Final answer
    x = 331,880.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.