Home / 258,010.04-356,041.78-143,296.09

Finding the Fourth Proportional to 258,010.04, 356,041.78 and 143,296.09

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Solution

The fourth proportional to 258,010.04, 356,041.78 and 143,296.09 is: 197,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,010.04 : 356,041.78 = 143,296.09 : x
  2. Step 2: Convert to fraction form
    258,010.04/356,041.78 = 143,296.09/x
  3. Step 3: Cross multiply
    258,010.04x = 356,041.78 × 143,296.09
  4. Step 4: Simplify right side
    258,010.04x = 51,019,393,702.30
  5. Step 5: Solve for x
    x = 51,019,393,702.30/258,010.04
  6. Step 6: Final answer
    x = 197,741.89

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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.