Finding the Fourth Proportional to 188,436.84, 260,044.16 and 103,553.68
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Solution
The fourth proportional to 188,436.84, 260,044.16 and 103,553.68 is: 142,904.80
Step by Step Solution
- Step 1: Write the proportion equation
188,436.84 : 260,044.16 = 103,553.68 : x - Step 2: Convert to fraction form
188,436.84/260,044.16 = 103,553.68/x - Step 3: Cross multiply
188,436.84x = 260,044.16 × 103,553.68 - Step 4: Simplify right side
188,436.84x = 26,928,529,730.51 - Step 5: Solve for x
x = 26,928,529,730.51/188,436.84 - Step 6: Final answer
x = 142,904.80
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1.5x scale
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.