Home / 258,501.69-356,726.07-143,779.95

Finding the Fourth Proportional to 258,501.69, 356,726.07 and 143,779.95

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Solution

The fourth proportional to 258,501.69, 356,726.07 and 143,779.95 is: 198,412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,501.69 : 356,726.07 = 143,779.95 : x
  2. Step 2: Convert to fraction form
    258,501.69/356,726.07 = 143,779.95/x
  3. Step 3: Cross multiply
    258,501.69x = 356,726.07 × 143,779.95
  4. Step 4: Simplify right side
    258,501.69x = 51,290,056,508.30
  5. Step 5: Solve for x
    x = 51,290,056,508.30/258,501.69
  6. Step 6: Final answer
    x = 198,412.85

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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.