Finding the Fourth Proportional to 393,186.65, 542,780.26 and 296,429.67
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Solution
The fourth proportional to 393,186.65, 542,780.26 and 296,429.67 is: 409,210.68
Step by Step Solution
- Step 1: Write the proportion equation
393,186.65 : 542,780.26 = 296,429.67 : x - Step 2: Convert to fraction form
393,186.65/542,780.26 = 296,429.67/x - Step 3: Cross multiply
393,186.65x = 542,780.26 × 296,429.67 - Step 4: Simplify right side
393,186.65x = 160,896,172,613.24 - Step 5: Solve for x
x = 160,896,172,613.24/393,186.65 - Step 6: Final answer
x = 409,210.68
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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.