Home / 379,050.76-523,090.20-209,285.02

Finding the Fourth Proportional to 379,050.76, 523,090.20 and 209,285.02

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Solution

The fourth proportional to 379,050.76, 523,090.20 and 209,285.02 is: 288,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,050.76 : 523,090.20 = 209,285.02 : x
  2. Step 2: Convert to fraction form
    379,050.76/523,090.20 = 209,285.02/x
  3. Step 3: Cross multiply
    379,050.76x = 523,090.20 × 209,285.02
  4. Step 4: Simplify right side
    379,050.76x = 109,474,942,968.80
  5. Step 5: Solve for x
    x = 109,474,942,968.80/379,050.76
  6. Step 6: Final answer
    x = 288,813.41

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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.