Finding the Fourth Proportional to 399,589.63, 551,471.67 and 218,328.77
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Solution
The fourth proportional to 399,589.63, 551,471.67 and 218,328.77 is: 301,314.46
Step by Step Solution
- Step 1: Write the proportion equation
399,589.63 : 551,471.67 = 218,328.77 : x - Step 2: Convert to fraction form
399,589.63/551,471.67 = 218,328.77/x - Step 3: Cross multiply
399,589.63x = 551,471.67 × 218,328.77 - Step 4: Simplify right side
399,589.63x = 120,402,132,779.63 - Step 5: Solve for x
x = 120,402,132,779.63/399,589.63 - Step 6: Final answer
x = 301,314.46
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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.