Home / 379,200.07-523,286.69-218,051.28

Finding the Fourth Proportional to 379,200.07, 523,286.69 and 218,051.28

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Solution

The fourth proportional to 379,200.07, 523,286.69 and 218,051.28 is: 300,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,200.07 : 523,286.69 = 218,051.28 : x
  2. Step 2: Convert to fraction form
    379,200.07/523,286.69 = 218,051.28/x
  3. Step 3: Cross multiply
    379,200.07x = 523,286.69 × 218,051.28
  4. Step 4: Simplify right side
    379,200.07x = 114,103,332,561.46
  5. Step 5: Solve for x
    x = 114,103,332,561.46/379,200.07
  6. Step 6: Final answer
    x = 300,905.36

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1.5x scale

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.