Finding the Fourth Proportional to 320,466.98, 442,299.89 and 193,142.68
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Solution
The fourth proportional to 320,466.98, 442,299.89 and 193,142.68 is: 266,570.32
Step by Step Solution
- Step 1: Write the proportion equation
320,466.98 : 442,299.89 = 193,142.68 : x - Step 2: Convert to fraction form
320,466.98/442,299.89 = 193,142.68/x - Step 3: Cross multiply
320,466.98x = 442,299.89 × 193,142.68 - Step 4: Simplify right side
320,466.98x = 85,426,985,495.41 - Step 5: Solve for x
x = 85,426,985,495.41/320,466.98 - Step 6: Final answer
x = 266,570.32
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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.