Finding the Fourth Proportional to 298,153.68, 447,328.96 and 120,563.76
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Solution
The fourth proportional to 298,153.68, 447,328.96 and 120,563.76 is: 180,885.45
Step by Step Solution
- Step 1: Write the proportion equation
298,153.68 : 447,328.96 = 120,563.76 : x - Step 2: Convert to fraction form
298,153.68/447,328.96 = 120,563.76/x - Step 3: Cross multiply
298,153.68x = 447,328.96 × 120,563.76 - Step 4: Simplify right side
298,153.68x = 53,931,661,374.49 - Step 5: Solve for x
x = 53,931,661,374.49/298,153.68 - Step 6: Final answer
x = 180,885.45
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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.