Finding the Fourth Proportional to 162,238.10, 243,357.15 and 117,655.70
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Solution
The fourth proportional to 162,238.10, 243,357.15 and 117,655.70 is: 176,483.55
Step by Step Solution
- Step 1: Write the proportion equation
162,238.10 : 243,357.15 = 117,655.70 : x - Step 2: Convert to fraction form
162,238.10/243,357.15 = 117,655.70/x - Step 3: Cross multiply
162,238.10x = 243,357.15 × 117,655.70 - Step 4: Simplify right side
162,238.10x = 28,632,355,833.26 - Step 5: Solve for x
x = 28,632,355,833.26/162,238.10 - Step 6: Final answer
x = 176,483.55
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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.