Home / 458,829.48-688,469.46-206,288.16

Finding the Fourth Proportional to 458,829.48, 688,469.46 and 206,288.16

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Solution

The fourth proportional to 458,829.48, 688,469.46 and 206,288.16 is: 309,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,829.48 : 688,469.46 = 206,288.16 : x
  2. Step 2: Convert to fraction form
    458,829.48/688,469.46 = 206,288.16/x
  3. Step 3: Cross multiply
    458,829.48x = 688,469.46 × 206,288.16
  4. Step 4: Simplify right side
    458,829.48x = 142,023,098,119.59
  5. Step 5: Solve for x
    x = 142,023,098,119.59/458,829.48
  6. Step 6: Final answer
    x = 309,533.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.