Finding the Fourth Proportional to 235,471.87, 324,952.87 and 128,041.13
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Solution
The fourth proportional to 235,471.87, 324,952.87 and 128,041.13 is: 176,697.68
Step by Step Solution
- Step 1: Write the proportion equation
235,471.87 : 324,952.87 = 128,041.13 : x - Step 2: Convert to fraction form
235,471.87/324,952.87 = 128,041.13/x - Step 3: Cross multiply
235,471.87x = 324,952.87 × 128,041.13 - Step 4: Simplify right side
235,471.87x = 41,607,332,671.54 - Step 5: Solve for x
x = 41,607,332,671.54/235,471.87 - Step 6: Final answer
x = 176,697.68
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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.