Finding the Fourth Proportional to 639,739.84, 959,610.99 and 166,424.44
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Solution
The fourth proportional to 639,739.84, 959,610.99 and 166,424.44 is: 249,636.98
Step by Step Solution
- Step 1: Write the proportion equation
639,739.84 : 959,610.99 = 166,424.44 : x - Step 2: Convert to fraction form
639,739.84/959,610.99 = 166,424.44/x - Step 3: Cross multiply
639,739.84x = 959,610.99 × 166,424.44 - Step 4: Simplify right side
639,739.84x = 159,702,721,628.60 - Step 5: Solve for x
x = 159,702,721,628.60/639,739.84 - Step 6: Final answer
x = 249,636.98
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1.5x scale
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.