Finding the Fourth Proportional to 364,902.86, 547,130.73 and 128,272.70
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Solution
The fourth proportional to 364,902.86, 547,130.73 and 128,272.70 is: 192,330.46
Step by Step Solution
- Step 1: Write the proportion equation
364,902.86 : 547,130.73 = 128,272.70 : x - Step 2: Convert to fraction form
364,902.86/547,130.73 = 128,272.70/x - Step 3: Cross multiply
364,902.86x = 547,130.73 × 128,272.70 - Step 4: Simplify right side
364,902.86x = 70,181,935,990.07 - Step 5: Solve for x
x = 70,181,935,990.07/364,902.86 - Step 6: Final answer
x = 192,330.46
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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.