Finding the Fourth Proportional to 228,415.55, 315,221.87 and 125,056.99
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Solution
The fourth proportional to 228,415.55, 315,221.87 and 125,056.99 is: 172,583.24
Step by Step Solution
- Step 1: Write the proportion equation
228,415.55 : 315,221.87 = 125,056.99 : x - Step 2: Convert to fraction form
228,415.55/315,221.87 = 125,056.99/x - Step 3: Cross multiply
228,415.55x = 315,221.87 × 125,056.99 - Step 4: Simplify right side
228,415.55x = 39,420,696,831.03 - Step 5: Solve for x
x = 39,420,696,831.03/228,415.55 - Step 6: Final answer
x = 172,583.24
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.