Home / 258,895.09-357,091.17-172,810.66

Finding the Fourth Proportional to 258,895.09, 357,091.17 and 172,810.66

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Solution

The fourth proportional to 258,895.09, 357,091.17 and 172,810.66 is: 238,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,895.09 : 357,091.17 = 172,810.66 : x
  2. Step 2: Convert to fraction form
    258,895.09/357,091.17 = 172,810.66/x
  3. Step 3: Cross multiply
    258,895.09x = 357,091.17 × 172,810.66
  4. Step 4: Simplify right side
    258,895.09x = 61,709,160,767.87
  5. Step 5: Solve for x
    x = 61,709,160,767.87/258,895.09
  6. Step 6: Final answer
    x = 238,355.86

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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.