Finding the Fourth Proportional to 368,342.49, 508,305.13 and 215,471.19
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Solution
The fourth proportional to 368,342.49, 508,305.13 and 215,471.19 is: 297,345.85
Step by Step Solution
- Step 1: Write the proportion equation
368,342.49 : 508,305.13 = 215,471.19 : x - Step 2: Convert to fraction form
368,342.49/508,305.13 = 215,471.19/x - Step 3: Cross multiply
368,342.49x = 508,305.13 × 215,471.19 - Step 4: Simplify right side
368,342.49x = 109,525,111,244.21 - Step 5: Solve for x
x = 109,525,111,244.21/368,342.49 - Step 6: Final answer
x = 297,345.85
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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.