Finding the Fourth Proportional to 235,632.15, 325,173.80 and 128,202.98
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Solution
The fourth proportional to 235,632.15, 325,173.80 and 128,202.98 is: 176,920.89
Step by Step Solution
- Step 1: Write the proportion equation
235,632.15 : 325,173.80 = 128,202.98 : x - Step 2: Convert to fraction form
235,632.15/325,173.80 = 128,202.98/x - Step 3: Cross multiply
235,632.15x = 325,173.80 × 128,202.98 - Step 4: Simplify right side
235,632.15x = 41,688,248,872.56 - Step 5: Solve for x
x = 41,688,248,872.56/235,632.15 - Step 6: Final answer
x = 176,920.89
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1.5x scale
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.