Finding the Fourth Proportional to 245,314.29, 338,543.31 and 137,883.99
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Solution
The fourth proportional to 245,314.29, 338,543.31 and 137,883.99 is: 190,285.30
Step by Step Solution
- Step 1: Write the proportion equation
245,314.29 : 338,543.31 = 137,883.99 : x - Step 2: Convert to fraction form
245,314.29/338,543.31 = 137,883.99/x - Step 3: Cross multiply
245,314.29x = 338,543.31 × 137,883.99 - Step 4: Simplify right side
245,314.29x = 46,679,702,370.61 - Step 5: Solve for x
x = 46,679,702,370.61/245,314.29 - Step 6: Final answer
x = 190,285.30
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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.