Finding the Fourth Proportional to 382,873.68, 528,365.70 and 213,104.16
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Solution
The fourth proportional to 382,873.68, 528,365.70 and 213,104.16 is: 294,083.75
Step by Step Solution
- Step 1: Write the proportion equation
382,873.68 : 528,365.70 = 213,104.16 : x - Step 2: Convert to fraction form
382,873.68/528,365.70 = 213,104.16/x - Step 3: Cross multiply
382,873.68x = 528,365.70 × 213,104.16 - Step 4: Simplify right side
382,873.68x = 112,596,928,671.31 - Step 5: Solve for x
x = 112,596,928,671.31/382,873.68 - Step 6: Final answer
x = 294,083.75
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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.