Finding the Fourth Proportional to 320,513.12, 442,278.36 and 177,270.09
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Solution
The fourth proportional to 320,513.12, 442,278.36 and 177,270.09 is: 244,616.27
Step by Step Solution
- Step 1: Write the proportion equation
320,513.12 : 442,278.36 = 177,270.09 : x - Step 2: Convert to fraction form
320,513.12/442,278.36 = 177,270.09/x - Step 3: Cross multiply
320,513.12x = 442,278.36 × 177,270.09 - Step 4: Simplify right side
320,513.12x = 78,402,723,023.71 - Step 5: Solve for x
x = 78,402,723,023.71/320,513.12 - Step 6: Final answer
x = 244,616.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.