Finding the Fourth Proportional to 239,639.80, 359,510.74 and 71,160.62
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Solution
The fourth proportional to 239,639.80, 359,510.74 and 71,160.62 is: 106,756.09
Step by Step Solution
- Step 1: Write the proportion equation
239,639.80 : 359,510.74 = 71,160.62 : x - Step 2: Convert to fraction form
239,639.80/359,510.74 = 71,160.62/x - Step 3: Cross multiply
239,639.80x = 359,510.74 × 71,160.62 - Step 4: Simplify right side
239,639.80x = 25,583,007,155.06 - Step 5: Solve for x
x = 25,583,007,155.06/239,639.80 - Step 6: Final answer
x = 106,756.09
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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.