Finding the Fourth Proportional to 905,160.36, 1,357,740.44 and 231,243.12
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Solution
The fourth proportional to 905,160.36, 1,357,740.44 and 231,243.12 is: 346,864.65
Step by Step Solution
- Step 1: Write the proportion equation
905,160.36 : 1,357,740.44 = 231,243.12 : x - Step 2: Convert to fraction form
905,160.36/1,357,740.44 = 231,243.12/x - Step 3: Cross multiply
905,160.36x = 1,357,740.44 × 231,243.12 - Step 4: Simplify right side
905,160.36x = 313,968,135,495.77 - Step 5: Solve for x
x = 313,968,135,495.77/905,160.36 - Step 6: Final answer
x = 346,864.65
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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.