Finding the Fourth Proportional to 381,669.84, 572,525.64 and 115,423.92
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Solution
The fourth proportional to 381,669.84, 572,525.64 and 115,423.92 is: 173,142.19
Step by Step Solution
- Step 1: Write the proportion equation
381,669.84 : 572,525.64 = 115,423.92 : x - Step 2: Convert to fraction form
381,669.84/572,525.64 = 115,423.92/x - Step 3: Cross multiply
381,669.84x = 572,525.64 × 115,423.92 - Step 4: Simplify right side
381,669.84x = 66,083,153,669.31 - Step 5: Solve for x
x = 66,083,153,669.31/381,669.84 - Step 6: Final answer
x = 173,142.19
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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.