Finding the Fourth Proportional to 399,559.88, 551,368.26 and 218,235.08
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Solution
The fourth proportional to 399,559.88, 551,368.26 and 218,235.08 is: 301,151.10
Step by Step Solution
- Step 1: Write the proportion equation
399,559.88 : 551,368.26 = 218,235.08 : x - Step 2: Convert to fraction form
399,559.88/551,368.26 = 218,235.08/x - Step 3: Cross multiply
399,559.88x = 551,368.26 × 218,235.08 - Step 4: Simplify right side
399,559.88x = 120,327,896,330.56 - Step 5: Solve for x
x = 120,327,896,330.56/399,559.88 - Step 6: Final answer
x = 301,151.10
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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.