Finding the Fourth Proportional to 235,981.29, 325,652.59 and 128,551.40
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Solution
The fourth proportional to 235,981.29, 325,652.59 and 128,551.40 is: 177,400.07
Step by Step Solution
- Step 1: Write the proportion equation
235,981.29 : 325,652.59 = 128,551.40 : x - Step 2: Convert to fraction form
235,981.29/325,652.59 = 128,551.40/x - Step 3: Cross multiply
235,981.29x = 325,652.59 × 128,551.40 - Step 4: Simplify right side
235,981.29x = 41,863,096,358.13 - Step 5: Solve for x
x = 41,863,096,358.13/235,981.29 - Step 6: Final answer
x = 177,400.07
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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.