Finding the Fourth Proportional to 215,783.46, 297,819.99 and 135,280.80
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Solution
The fourth proportional to 215,783.46, 297,819.99 and 135,280.80 is: 186,711.84
Step by Step Solution
- Step 1: Write the proportion equation
215,783.46 : 297,819.99 = 135,280.80 : x - Step 2: Convert to fraction form
215,783.46/297,819.99 = 135,280.80/x - Step 3: Cross multiply
215,783.46x = 297,819.99 × 135,280.80 - Step 4: Simplify right side
215,783.46x = 40,289,326,503.19 - Step 5: Solve for x
x = 40,289,326,503.19/215,783.46 - Step 6: Final answer
x = 186,711.84
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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.