Finding the Fourth Proportional to 245,969.05, 368,706.93 and 85,920.75
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Solution
The fourth proportional to 245,969.05, 368,706.93 and 85,920.75 is: 128,794.96
Step by Step Solution
- Step 1: Write the proportion equation
245,969.05 : 368,706.93 = 85,920.75 : x - Step 2: Convert to fraction form
245,969.05/368,706.93 = 85,920.75/x - Step 3: Cross multiply
245,969.05x = 368,706.93 × 85,920.75 - Step 4: Simplify right side
245,969.05x = 31,679,575,034.03 - Step 5: Solve for x
x = 31,679,575,034.03/245,969.05 - Step 6: Final answer
x = 128,794.96
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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.