Finding the Fourth Proportional to 150,302.70, 207,370.53 and 86,631.66
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Solution
The fourth proportional to 150,302.70, 207,370.53 and 86,631.66 is: 119,524.49
Step by Step Solution
- Step 1: Write the proportion equation
150,302.70 : 207,370.53 = 86,631.66 : x - Step 2: Convert to fraction form
150,302.70/207,370.53 = 86,631.66/x - Step 3: Cross multiply
150,302.70x = 207,370.53 × 86,631.66 - Step 4: Simplify right side
150,302.70x = 17,964,853,248.98 - Step 5: Solve for x
x = 17,964,853,248.98/150,302.70 - Step 6: Final answer
x = 119,524.49
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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.