Finding the Fourth Proportional to 387,222.08, 580,913.76 and 120,971.84
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Solution
The fourth proportional to 387,222.08, 580,913.76 and 120,971.84 is: 181,482.95
Step by Step Solution
- Step 1: Write the proportion equation
387,222.08 : 580,913.76 = 120,971.84 : x - Step 2: Convert to fraction form
387,222.08/580,913.76 = 120,971.84/x - Step 3: Cross multiply
387,222.08x = 580,913.76 × 120,971.84 - Step 4: Simplify right side
387,222.08x = 70,274,206,428.52 - Step 5: Solve for x
x = 70,274,206,428.52/387,222.08 - Step 6: Final answer
x = 181,482.95
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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.