Home / 351,927.75-485,122.86-215,709.24

Finding the Fourth Proportional to 351,927.75, 485,122.86 and 215,709.24

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Solution

The fourth proportional to 351,927.75, 485,122.86 and 215,709.24 is: 297,349.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,927.75 : 485,122.86 = 215,709.24 : x
  2. Step 2: Convert to fraction form
    351,927.75/485,122.86 = 215,709.24/x
  3. Step 3: Cross multiply
    351,927.75x = 485,122.86 × 215,709.24
  4. Step 4: Simplify right side
    351,927.75x = 104,645,483,437.23
  5. Step 5: Solve for x
    x = 104,645,483,437.23/351,927.75
  6. Step 6: Final answer
    x = 297,349.34

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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.