Finding the Fourth Proportional to 387,644.06, 580,222.01 and 207,278.99
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Solution
The fourth proportional to 387,644.06, 580,222.01 and 207,278.99 is: 310,253.25
Step by Step Solution
- Step 1: Write the proportion equation
387,644.06 : 580,222.01 = 207,278.99 : x - Step 2: Convert to fraction form
387,644.06/580,222.01 = 207,278.99/x - Step 3: Cross multiply
387,644.06x = 580,222.01 × 207,278.99 - Step 4: Simplify right side
387,644.06x = 120,267,828,271.07 - Step 5: Solve for x
x = 120,267,828,271.07/387,644.06 - Step 6: Final answer
x = 310,253.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.