Finding the Fourth Proportional to 311,980.36, 430,537.08 and 176,013.88
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Solution
The fourth proportional to 311,980.36, 430,537.08 and 176,013.88 is: 242,901.51
Step by Step Solution
- Step 1: Write the proportion equation
311,980.36 : 430,537.08 = 176,013.88 : x - Step 2: Convert to fraction form
311,980.36/430,537.08 = 176,013.88/x - Step 3: Cross multiply
311,980.36x = 430,537.08 × 176,013.88 - Step 4: Simplify right side
311,980.36x = 75,780,501,934.67 - Step 5: Solve for x
x = 75,780,501,934.67/311,980.36 - Step 6: Final answer
x = 242,901.51
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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.