Finding the Fourth Proportional to 207,121.07, 285,908.51 and 130,624.94
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Solution
The fourth proportional to 207,121.07, 285,908.51 and 130,624.94 is: 180,313.77
Step by Step Solution
- Step 1: Write the proportion equation
207,121.07 : 285,908.51 = 130,624.94 : x - Step 2: Convert to fraction form
207,121.07/285,908.51 = 130,624.94/x - Step 3: Cross multiply
207,121.07x = 285,908.51 × 130,624.94 - Step 4: Simplify right side
207,121.07x = 37,346,781,964.24 - Step 5: Solve for x
x = 37,346,781,964.24/207,121.07 - Step 6: Final answer
x = 180,313.77
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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.