Home / 258,318.79-356,466.22-145,134.25

Finding the Fourth Proportional to 258,318.79, 356,466.22 and 145,134.25

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Solution

The fourth proportional to 258,318.79, 356,466.22 and 145,134.25 is: 200,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,318.79 : 356,466.22 = 145,134.25 : x
  2. Step 2: Convert to fraction form
    258,318.79/356,466.22 = 145,134.25/x
  3. Step 3: Cross multiply
    258,318.79x = 356,466.22 × 145,134.25
  4. Step 4: Simplify right side
    258,318.79x = 51,735,457,490.04
  5. Step 5: Solve for x
    x = 51,735,457,490.04/258,318.79
  6. Step 6: Final answer
    x = 200,277.56

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1.5x scale

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.