Home / 355,064.24-489,923.20-209,893.44

Finding the Fourth Proportional to 355,064.24, 489,923.20 and 209,893.44

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Solution

The fourth proportional to 355,064.24, 489,923.20 and 209,893.44 is: 289,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,064.24 : 489,923.20 = 209,893.44 : x
  2. Step 2: Convert to fraction form
    355,064.24/489,923.20 = 209,893.44/x
  3. Step 3: Cross multiply
    355,064.24x = 489,923.20 × 209,893.44
  4. Step 4: Simplify right side
    355,064.24x = 102,831,665,783.81
  5. Step 5: Solve for x
    x = 102,831,665,783.81/355,064.24
  6. Step 6: Final answer
    x = 289,614.26

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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.