Home / 305,708.10-458,999.55-231,350.10

Finding the Fourth Proportional to 305,708.10, 458,999.55 and 231,350.10

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Solution

The fourth proportional to 305,708.10, 458,999.55 and 231,350.10 is: 347,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,708.10 : 458,999.55 = 231,350.10 : x
  2. Step 2: Convert to fraction form
    305,708.10/458,999.55 = 231,350.10/x
  3. Step 3: Cross multiply
    305,708.10x = 458,999.55 × 231,350.10
  4. Step 4: Simplify right side
    305,708.10x = 106,189,591,792.46
  5. Step 5: Solve for x
    x = 106,189,591,792.46/305,708.10
  6. Step 6: Final answer
    x = 347,356.16

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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.