Home / 258,189.12-356,293.91-143,464.82

Finding the Fourth Proportional to 258,189.12, 356,293.91 and 143,464.82

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Solution

The fourth proportional to 258,189.12, 356,293.91 and 143,464.82 is: 197,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,189.12 : 356,293.91 = 143,464.82 : x
  2. Step 2: Convert to fraction form
    258,189.12/356,293.91 = 143,464.82/x
  3. Step 3: Cross multiply
    258,189.12x = 356,293.91 × 143,464.82
  4. Step 4: Simplify right side
    258,189.12x = 51,115,639,166.45
  5. Step 5: Solve for x
    x = 51,115,639,166.45/258,189.12
  6. Step 6: Final answer
    x = 197,977.51

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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.