Home / 317,975.10-438,709.95-190,604.22

Finding the Fourth Proportional to 317,975.10, 438,709.95 and 190,604.22

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Solution

The fourth proportional to 317,975.10, 438,709.95 and 190,604.22 is: 262,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,975.10 : 438,709.95 = 190,604.22 : x
  2. Step 2: Convert to fraction form
    317,975.10/438,709.95 = 190,604.22/x
  3. Step 3: Cross multiply
    317,975.10x = 438,709.95 × 190,604.22
  4. Step 4: Simplify right side
    317,975.10x = 83,619,967,825.99
  5. Step 5: Solve for x
    x = 83,619,967,825.99/317,975.10
  6. Step 6: Final answer
    x = 262,976.47

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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.