Home / 343,450.12-515,116.86-90,733.36

Finding the Fourth Proportional to 343,450.12, 515,116.86 and 90,733.36

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Solution

The fourth proportional to 343,450.12, 515,116.86 and 90,733.36 is: 136,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,450.12 : 515,116.86 = 90,733.36 : x
  2. Step 2: Convert to fraction form
    343,450.12/515,116.86 = 90,733.36/x
  3. Step 3: Cross multiply
    343,450.12x = 515,116.86 × 90,733.36
  4. Step 4: Simplify right side
    343,450.12x = 46,738,283,500.45
  5. Step 5: Solve for x
    x = 46,738,283,500.45/343,450.12
  6. Step 6: Final answer
    x = 136,084.63

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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.