Finding the Fourth Proportional to 643,226.68, 964,159.08 and 216,356.14
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Solution
The fourth proportional to 643,226.68, 964,159.08 and 216,356.14 is: 324,305.17
Step by Step Solution
- Step 1: Write the proportion equation
643,226.68 : 964,159.08 = 216,356.14 : x - Step 2: Convert to fraction form
643,226.68/964,159.08 = 216,356.14/x - Step 3: Cross multiply
643,226.68x = 964,159.08 × 216,356.14 - Step 4: Simplify right side
643,226.68x = 208,601,736,894.75 - Step 5: Solve for x
x = 208,601,736,894.75/643,226.68 - Step 6: Final answer
x = 324,305.17
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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.