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Finding the Fourth Proportional to 258,017.33, 356,064.77 and 143,296.27

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Solution

The fourth proportional to 258,017.33, 356,064.77 and 143,296.27 is: 197,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,017.33 : 356,064.77 = 143,296.27 : x
  2. Step 2: Convert to fraction form
    258,017.33/356,064.77 = 143,296.27/x
  3. Step 3: Cross multiply
    258,017.33x = 356,064.77 × 143,296.27
  4. Step 4: Simplify right side
    258,017.33x = 51,022,752,887.49
  5. Step 5: Solve for x
    x = 51,022,752,887.49/258,017.33
  6. Step 6: Final answer
    x = 197,749.32

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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.