Finding the Fourth Proportional to 155,220.12, 232,831.80 and 124,252.20
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Solution
The fourth proportional to 155,220.12, 232,831.80 and 124,252.20 is: 186,379.60
Step by Step Solution
- Step 1: Write the proportion equation
155,220.12 : 232,831.80 = 124,252.20 : x - Step 2: Convert to fraction form
155,220.12/232,831.80 = 124,252.20/x - Step 3: Cross multiply
155,220.12x = 232,831.80 × 124,252.20 - Step 4: Simplify right side
155,220.12x = 28,929,863,379.96 - Step 5: Solve for x
x = 28,929,863,379.96/155,220.12 - Step 6: Final answer
x = 186,379.60
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1.5x scale
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.