Finding the Fourth Proportional to 319,433.58, 478,676.99 and 129,663.02
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Solution
The fourth proportional to 319,433.58, 478,676.99 and 129,663.02 is: 194,302.38
Step by Step Solution
- Step 1: Write the proportion equation
319,433.58 : 478,676.99 = 129,663.02 : x - Step 2: Convert to fraction form
319,433.58/478,676.99 = 129,663.02/x - Step 3: Cross multiply
319,433.58x = 478,676.99 × 129,663.02 - Step 4: Simplify right side
319,433.58x = 62,066,705,648.76 - Step 5: Solve for x
x = 62,066,705,648.76/319,433.58 - Step 6: Final answer
x = 194,302.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.