Finding the Fourth Proportional to 156,749.50, 235,124.20 and 38,419.84
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Solution
The fourth proportional to 156,749.50, 235,124.20 and 38,419.84 is: 57,629.75
Step by Step Solution
- Step 1: Write the proportion equation
156,749.50 : 235,124.20 = 38,419.84 : x - Step 2: Convert to fraction form
156,749.50/235,124.20 = 38,419.84/x - Step 3: Cross multiply
156,749.50x = 235,124.20 × 38,419.84 - Step 4: Simplify right side
156,749.50x = 9,033,434,144.13 - Step 5: Solve for x
x = 9,033,434,144.13/156,749.50 - Step 6: Final answer
x = 57,629.75
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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.