Home / 317,190.10-437,742.58-209,571.34

Finding the Fourth Proportional to 317,190.10, 437,742.58 and 209,571.34

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Solution

The fourth proportional to 317,190.10, 437,742.58 and 209,571.34 is: 289,221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,190.10 : 437,742.58 = 209,571.34 : x
  2. Step 2: Convert to fraction form
    317,190.10/437,742.58 = 209,571.34/x
  3. Step 3: Cross multiply
    317,190.10x = 437,742.58 × 209,571.34
  4. Step 4: Simplify right side
    317,190.10x = 91,738,299,065.66
  5. Step 5: Solve for x
    x = 91,738,299,065.66/317,190.10
  6. Step 6: Final answer
    x = 289,221.82

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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.