Finding the Fourth Proportional to 319,927.76, 479,327.88 and 285,177.68
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Solution
The fourth proportional to 319,927.76, 479,327.88 and 285,177.68 is: 427,263.99
Step by Step Solution
- Step 1: Write the proportion equation
319,927.76 : 479,327.88 = 285,177.68 : x - Step 2: Convert to fraction form
319,927.76/479,327.88 = 285,177.68/x - Step 3: Cross multiply
319,927.76x = 479,327.88 × 285,177.68 - Step 4: Simplify right side
319,927.76x = 136,693,612,777.72 - Step 5: Solve for x
x = 136,693,612,777.72/319,927.76 - Step 6: Final answer
x = 427,263.99
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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.