Finding the Fourth Proportional to 309,723.98, 427,569.26 and 207,712.26
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Solution
The fourth proportional to 309,723.98, 427,569.26 and 207,712.26 is: 286,743.63
Step by Step Solution
- Step 1: Write the proportion equation
309,723.98 : 427,569.26 = 207,712.26 : x - Step 2: Convert to fraction form
309,723.98/427,569.26 = 207,712.26/x - Step 3: Cross multiply
309,723.98x = 427,569.26 × 207,712.26 - Step 4: Simplify right side
309,723.98x = 88,811,376,262.57 - Step 5: Solve for x
x = 88,811,376,262.57/309,723.98 - Step 6: Final answer
x = 286,743.63
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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.