Finding the Fourth Proportional to 165,336.70, 247,808.16 and 115,145.05
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Solution
The fourth proportional to 165,336.70, 247,808.16 and 115,145.05 is: 172,580.46
Step by Step Solution
- Step 1: Write the proportion equation
165,336.70 : 247,808.16 = 115,145.05 : x - Step 2: Convert to fraction form
165,336.70/247,808.16 = 115,145.05/x - Step 3: Cross multiply
165,336.70x = 247,808.16 × 115,145.05 - Step 4: Simplify right side
165,336.70x = 28,533,882,973.61 - Step 5: Solve for x
x = 28,533,882,973.61/165,336.70 - Step 6: Final answer
x = 172,580.46
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1.5x scale
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.