Finding the Fourth Proportional to 156,969.70, 235,454.55 and 145,449.70
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Solution
The fourth proportional to 156,969.70, 235,454.55 and 145,449.70 is: 218,174.55
Step by Step Solution
- Step 1: Write the proportion equation
156,969.70 : 235,454.55 = 145,449.70 : x - Step 2: Convert to fraction form
156,969.70/235,454.55 = 145,449.70/x - Step 3: Cross multiply
156,969.70x = 235,454.55 × 145,449.70 - Step 4: Simplify right side
156,969.70x = 34,246,793,661.14 - Step 5: Solve for x
x = 34,246,793,661.14/156,969.70 - Step 6: Final answer
x = 218,174.55
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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.