Home / 258,296.81-356,425.14-143,561.83

Finding the Fourth Proportional to 258,296.81, 356,425.14 and 143,561.83

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Solution

The fourth proportional to 258,296.81, 356,425.14 and 143,561.83 is: 198,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,296.81 : 356,425.14 = 143,561.83 : x
  2. Step 2: Convert to fraction form
    258,296.81/356,425.14 = 143,561.83/x
  3. Step 3: Cross multiply
    258,296.81x = 356,425.14 × 143,561.83
  4. Step 4: Simplify right side
    258,296.81x = 51,169,045,356.41
  5. Step 5: Solve for x
    x = 51,169,045,356.41/258,296.81
  6. Step 6: Final answer
    x = 198,101.73

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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.