Finding the Fourth Proportional to 421,557.80, 581,764.74 and 240,297.08
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Solution
The fourth proportional to 421,557.80, 581,764.74 and 240,297.08 is: 331,618.51
Step by Step Solution
- Step 1: Write the proportion equation
421,557.80 : 581,764.74 = 240,297.08 : x - Step 2: Convert to fraction form
421,557.80/581,764.74 = 240,297.08/x - Step 3: Cross multiply
421,557.80x = 581,764.74 × 240,297.08 - Step 4: Simplify right side
421,557.80x = 139,796,368,268.96 - Step 5: Solve for x
x = 139,796,368,268.96/421,557.80 - Step 6: Final answer
x = 331,618.51
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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.