Finding the Fourth Proportional to 205,197.04, 283,176.68 and 128,719.36
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Solution
The fourth proportional to 205,197.04, 283,176.68 and 128,719.36 is: 177,635.70
Step by Step Solution
- Step 1: Write the proportion equation
205,197.04 : 283,176.68 = 128,719.36 : x - Step 2: Convert to fraction form
205,197.04/283,176.68 = 128,719.36/x - Step 3: Cross multiply
205,197.04x = 283,176.68 × 128,719.36 - Step 4: Simplify right side
205,197.04x = 36,450,320,726.90 - Step 5: Solve for x
x = 36,450,320,726.90/205,197.04 - Step 6: Final answer
x = 177,635.70
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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.