Home / 379,056.36-523,094.40-209,286.84

Finding the Fourth Proportional to 379,056.36, 523,094.40 and 209,286.84

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Solution

The fourth proportional to 379,056.36, 523,094.40 and 209,286.84 is: 288,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,056.36 : 523,094.40 = 209,286.84 : x
  2. Step 2: Convert to fraction form
    379,056.36/523,094.40 = 209,286.84/x
  3. Step 3: Cross multiply
    379,056.36x = 523,094.40 × 209,286.84
  4. Step 4: Simplify right side
    379,056.36x = 109,476,773,997.70
  5. Step 5: Solve for x
    x = 109,476,773,997.70/379,056.36
  6. Step 6: Final answer
    x = 288,813.97

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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.