Home / 258,000.56-356,044.26-143,286.60

Finding the Fourth Proportional to 258,000.56, 356,044.26 and 143,286.60

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Solution

The fourth proportional to 258,000.56, 356,044.26 and 143,286.60 is: 197,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,000.56 : 356,044.26 = 143,286.60 : x
  2. Step 2: Convert to fraction form
    258,000.56/356,044.26 = 143,286.60/x
  3. Step 3: Cross multiply
    258,000.56x = 356,044.26 × 143,286.60
  4. Step 4: Simplify right side
    258,000.56x = 51,016,370,748.48
  5. Step 5: Solve for x
    x = 51,016,370,748.48/258,000.56
  6. Step 6: Final answer
    x = 197,737.45

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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.