Home / 305,684.12-458,617.31-145,880.03

Finding the Fourth Proportional to 305,684.12, 458,617.31 and 145,880.03

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Solution

The fourth proportional to 305,684.12, 458,617.31 and 145,880.03 is: 218,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,684.12 : 458,617.31 = 145,880.03 : x
  2. Step 2: Convert to fraction form
    305,684.12/458,617.31 = 145,880.03/x
  3. Step 3: Cross multiply
    305,684.12x = 458,617.31 × 145,880.03
  4. Step 4: Simplify right side
    305,684.12x = 66,903,103,918.83
  5. Step 5: Solve for x
    x = 66,903,103,918.83/305,684.12
  6. Step 6: Final answer
    x = 218,863.53

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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.