Finding the Fourth Proportional to 205,831.23, 308,427.99 and 142,773.95
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Solution
The fourth proportional to 205,831.23, 308,427.99 and 142,773.95 is: 213,939.75
Step by Step Solution
- Step 1: Write the proportion equation
205,831.23 : 308,427.99 = 142,773.95 : x - Step 2: Convert to fraction form
205,831.23/308,427.99 = 142,773.95/x - Step 3: Cross multiply
205,831.23x = 308,427.99 × 142,773.95 - Step 4: Simplify right side
205,831.23x = 44,035,480,880.72 - Step 5: Solve for x
x = 44,035,480,880.72/205,831.23 - Step 6: Final answer
x = 213,939.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.