Finding the Fourth Proportional to 397,345.09, 548,338.80 and 216,058.99
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Solution
The fourth proportional to 397,345.09, 548,338.80 and 216,058.99 is: 298,162.81
Step by Step Solution
- Step 1: Write the proportion equation
397,345.09 : 548,338.80 = 216,058.99 : x - Step 2: Convert to fraction form
397,345.09/548,338.80 = 216,058.99/x - Step 3: Cross multiply
397,345.09x = 548,338.80 × 216,058.99 - Step 4: Simplify right side
397,345.09x = 118,473,527,305.81 - Step 5: Solve for x
x = 118,473,527,305.81/397,345.09 - Step 6: Final answer
x = 298,162.81
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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.