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Finding the Fourth Proportional to 258,508.02, 356,774.31 and 145,352.64

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Solution

The fourth proportional to 258,508.02, 356,774.31 and 145,352.64 is: 200,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,508.02 : 356,774.31 = 145,352.64 : x
  2. Step 2: Convert to fraction form
    258,508.02/356,774.31 = 145,352.64/x
  3. Step 3: Cross multiply
    258,508.02x = 356,774.31 × 145,352.64
  4. Step 4: Simplify right side
    258,508.02x = 51,858,087,842.68
  5. Step 5: Solve for x
    x = 51,858,087,842.68/258,508.02
  6. Step 6: Final answer
    x = 200,605.33

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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.