Finding the Fourth Proportional to 311,904.68, 430,418.75 and 175,936.59
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Solution
The fourth proportional to 311,904.68, 430,418.75 and 175,936.59 is: 242,787.02
Step by Step Solution
- Step 1: Write the proportion equation
311,904.68 : 430,418.75 = 175,936.59 : x - Step 2: Convert to fraction form
311,904.68/430,418.75 = 175,936.59/x - Step 3: Cross multiply
311,904.68x = 430,418.75 × 175,936.59 - Step 4: Simplify right side
311,904.68x = 75,726,406,267.38 - Step 5: Solve for x
x = 75,726,406,267.38/311,904.68 - Step 6: Final answer
x = 242,787.02
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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.