Finding the Fourth Proportional to 388,742.97, 581,797.80 and 239,078.19
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Solution
The fourth proportional to 388,742.97, 581,797.80 and 239,078.19 is: 357,807.54
Step by Step Solution
- Step 1: Write the proportion equation
388,742.97 : 581,797.80 = 239,078.19 : x - Step 2: Convert to fraction form
388,742.97/581,797.80 = 239,078.19/x - Step 3: Cross multiply
388,742.97x = 581,797.80 × 239,078.19 - Step 4: Simplify right side
388,742.97x = 139,095,164,969.98 - Step 5: Solve for x
x = 139,095,164,969.98/388,742.97 - Step 6: Final answer
x = 357,807.54
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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.