Finding the Fourth Proportional to 230,907.84, 318,649.68 and 128,934.96
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Solution
The fourth proportional to 230,907.84, 318,649.68 and 128,934.96 is: 177,928.49
Step by Step Solution
- Step 1: Write the proportion equation
230,907.84 : 318,649.68 = 128,934.96 : x - Step 2: Convert to fraction form
230,907.84/318,649.68 = 128,934.96/x - Step 3: Cross multiply
230,907.84x = 318,649.68 × 128,934.96 - Step 4: Simplify right side
230,907.84x = 41,085,083,744.81 - Step 5: Solve for x
x = 41,085,083,744.81/230,907.84 - Step 6: Final answer
x = 177,928.49
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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.