Home / 379,202.07-523,289.45-218,053.28

Finding the Fourth Proportional to 379,202.07, 523,289.45 and 218,053.28

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Solution

The fourth proportional to 379,202.07, 523,289.45 and 218,053.28 is: 300,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,202.07 : 523,289.45 = 218,053.28 : x
  2. Step 2: Convert to fraction form
    379,202.07/523,289.45 = 218,053.28/x
  3. Step 3: Cross multiply
    379,202.07x = 523,289.45 × 218,053.28
  4. Step 4: Simplify right side
    379,202.07x = 114,104,980,961.90
  5. Step 5: Solve for x
    x = 114,104,980,961.90/379,202.07
  6. Step 6: Final answer
    x = 300,908.12

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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.