Finding the Fourth Proportional to 315,893.10, 473,769.94 and 91,204.66
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Solution
The fourth proportional to 315,893.10, 473,769.94 and 91,204.66 is: 136,786.86
Step by Step Solution
- Step 1: Write the proportion equation
315,893.10 : 473,769.94 = 91,204.66 : x - Step 2: Convert to fraction form
315,893.10/473,769.94 = 91,204.66/x - Step 3: Cross multiply
315,893.10x = 473,769.94 × 91,204.66 - Step 4: Simplify right side
315,893.10x = 43,210,023,927.07 - Step 5: Solve for x
x = 43,210,023,927.07/315,893.10 - Step 6: Final answer
x = 136,786.86
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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.