Finding the Fourth Proportional to 643,368.23, 964,927.80 and 216,859.19
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Solution
The fourth proportional to 643,368.23, 964,927.80 and 216,859.19 is: 325,246.80
Step by Step Solution
- Step 1: Write the proportion equation
643,368.23 : 964,927.80 = 216,859.19 : x - Step 2: Convert to fraction form
643,368.23/964,927.80 = 216,859.19/x - Step 3: Cross multiply
643,368.23x = 964,927.80 × 216,859.19 - Step 4: Simplify right side
643,368.23x = 209,253,456,291.84 - Step 5: Solve for x
x = 209,253,456,291.84/643,368.23 - Step 6: Final answer
x = 325,246.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.