Home / 258,230.60-356,313.30-145,058.12

Finding the Fourth Proportional to 258,230.60, 356,313.30 and 145,058.12

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Solution

The fourth proportional to 258,230.60, 356,313.30 and 145,058.12 is: 200,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,230.60 : 356,313.30 = 145,058.12 : x
  2. Step 2: Convert to fraction form
    258,230.60/356,313.30 = 145,058.12/x
  3. Step 3: Cross multiply
    258,230.60x = 356,313.30 × 145,058.12
  4. Step 4: Simplify right side
    258,230.60x = 51,686,137,429.00
  5. Step 5: Solve for x
    x = 51,686,137,429.00/258,230.60
  6. Step 6: Final answer
    x = 200,154.97

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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.