Finding the Fourth Proportional to 307,979.48, 461,969.30 and 115,890.08
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Solution
The fourth proportional to 307,979.48, 461,969.30 and 115,890.08 is: 173,835.15
Step by Step Solution
- Step 1: Write the proportion equation
307,979.48 : 461,969.30 = 115,890.08 : x - Step 2: Convert to fraction form
307,979.48/461,969.30 = 115,890.08/x - Step 3: Cross multiply
307,979.48x = 461,969.30 × 115,890.08 - Step 4: Simplify right side
307,979.48x = 53,537,658,555.09 - Step 5: Solve for x
x = 53,537,658,555.09/307,979.48 - Step 6: Final answer
x = 173,835.15
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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.