Home / 343,768.32-515,666.43-163,761.18

Finding the Fourth Proportional to 343,768.32, 515,666.43 and 163,761.18

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Solution

The fourth proportional to 343,768.32, 515,666.43 and 163,761.18 is: 245,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,768.32 : 515,666.43 = 163,761.18 : x
  2. Step 2: Convert to fraction form
    343,768.32/515,666.43 = 163,761.18/x
  3. Step 3: Cross multiply
    343,768.32x = 515,666.43 × 163,761.18
  4. Step 4: Simplify right side
    343,768.32x = 84,446,143,063.19
  5. Step 5: Solve for x
    x = 84,446,143,063.19/343,768.32
  6. Step 6: Final answer
    x = 245,648.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.