Finding the Fourth Proportional to 320,871.36, 442,663.48 and 193,476.18
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Solution
The fourth proportional to 320,871.36, 442,663.48 and 193,476.18 is: 266,913.32
Step by Step Solution
- Step 1: Write the proportion equation
320,871.36 : 442,663.48 = 193,476.18 : x - Step 2: Convert to fraction form
320,871.36/442,663.48 = 193,476.18/x - Step 3: Cross multiply
320,871.36x = 442,663.48 × 193,476.18 - Step 4: Simplify right side
320,871.36x = 85,644,839,135.91 - Step 5: Solve for x
x = 85,644,839,135.91/320,871.36 - Step 6: Final answer
x = 266,913.32
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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.