Finding the Fourth Proportional to 399,778.26, 551,687.49 and 218,488.02
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Solution
The fourth proportional to 399,778.26, 551,687.49 and 218,488.02 is: 301,509.91
Step by Step Solution
- Step 1: Write the proportion equation
399,778.26 : 551,687.49 = 218,488.02 : x - Step 2: Convert to fraction form
399,778.26/551,687.49 = 218,488.02/x - Step 3: Cross multiply
399,778.26x = 551,687.49 × 218,488.02 - Step 4: Simplify right side
399,778.26x = 120,537,107,348.87 - Step 5: Solve for x
x = 120,537,107,348.87/399,778.26 - Step 6: Final answer
x = 301,509.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.