Finding the Fourth Proportional to 382,980.19, 528,503.11 and 210,896.79
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Solution
The fourth proportional to 382,980.19, 528,503.11 and 210,896.79 is: 291,032.31
Step by Step Solution
- Step 1: Write the proportion equation
382,980.19 : 528,503.11 = 210,896.79 : x - Step 2: Convert to fraction form
382,980.19/528,503.11 = 210,896.79/x - Step 3: Cross multiply
382,980.19x = 528,503.11 × 210,896.79 - Step 4: Simplify right side
382,980.19x = 111,459,609,404.02 - Step 5: Solve for x
x = 111,459,609,404.02/382,980.19 - Step 6: Final answer
x = 291,032.31
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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.