Finding the Fourth Proportional to 163,749.04, 225,427.80 and 156,225.76
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Solution
The fourth proportional to 163,749.04, 225,427.80 and 156,225.76 is: 215,070.75
Step by Step Solution
- Step 1: Write the proportion equation
163,749.04 : 225,427.80 = 156,225.76 : x - Step 2: Convert to fraction form
163,749.04/225,427.80 = 156,225.76/x - Step 3: Cross multiply
163,749.04x = 225,427.80 × 156,225.76 - Step 4: Simplify right side
163,749.04x = 35,217,629,380.13 - Step 5: Solve for x
x = 35,217,629,380.13/163,749.04 - Step 6: Final answer
x = 215,070.75
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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.