Finding the Fourth Proportional to 319,850.19, 479,941.34 and 130,449.51
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Solution
The fourth proportional to 319,850.19, 479,941.34 and 130,449.51 is: 195,741.99
Step by Step Solution
- Step 1: Write the proportion equation
319,850.19 : 479,941.34 = 130,449.51 : x - Step 2: Convert to fraction form
319,850.19/479,941.34 = 130,449.51/x - Step 3: Cross multiply
319,850.19x = 479,941.34 × 130,449.51 - Step 4: Simplify right side
319,850.19x = 62,608,111,979.50 - Step 5: Solve for x
x = 62,608,111,979.50/319,850.19 - Step 6: Final answer
x = 195,741.99
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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.