Finding the Fourth Proportional to 378,859.68, 522,829.08 and 206,776.08
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Solution
The fourth proportional to 378,859.68, 522,829.08 and 206,776.08 is: 285,352.48
Step by Step Solution
- Step 1: Write the proportion equation
378,859.68 : 522,829.08 = 206,776.08 : x - Step 2: Convert to fraction form
378,859.68/522,829.08 = 206,776.08/x - Step 3: Cross multiply
378,859.68x = 522,829.08 × 206,776.08 - Step 4: Simplify right side
378,859.68x = 108,108,547,672.41 - Step 5: Solve for x
x = 108,108,547,672.41/378,859.68 - Step 6: Final answer
x = 285,352.48
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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.