Home / 258,106.11-356,174.31-143,392.15

Finding the Fourth Proportional to 258,106.11, 356,174.31 and 143,392.15

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Solution

The fourth proportional to 258,106.11, 356,174.31 and 143,392.15 is: 197,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,106.11 : 356,174.31 = 143,392.15 : x
  2. Step 2: Convert to fraction form
    258,106.11/356,174.31 = 143,392.15/x
  3. Step 3: Cross multiply
    258,106.11x = 356,174.31 × 143,392.15
  4. Step 4: Simplify right side
    258,106.11x = 51,072,600,085.67
  5. Step 5: Solve for x
    x = 51,072,600,085.67/258,106.11
  6. Step 6: Final answer
    x = 197,874.43

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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.