Finding the Fourth Proportional to 612,132.75, 918,252.05 and 168,900.75
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Solution
The fourth proportional to 612,132.75, 918,252.05 and 168,900.75 is: 253,365.73
Step by Step Solution
- Step 1: Write the proportion equation
612,132.75 : 918,252.05 = 168,900.75 : x - Step 2: Convert to fraction form
612,132.75/918,252.05 = 168,900.75/x - Step 3: Cross multiply
612,132.75x = 918,252.05 × 168,900.75 - Step 4: Simplify right side
612,132.75x = 155,093,459,089.53 - Step 5: Solve for x
x = 155,093,459,089.53/612,132.75 - Step 6: Final answer
x = 253,365.73
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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.