Finding the Fourth Proportional to 276,177.66, 413,979.21 and 187,438.38
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Solution
The fourth proportional to 276,177.66, 413,979.21 and 187,438.38 is: 280,962.60
Step by Step Solution
- Step 1: Write the proportion equation
276,177.66 : 413,979.21 = 187,438.38 : x - Step 2: Convert to fraction form
276,177.66/413,979.21 = 187,438.38/x - Step 3: Cross multiply
276,177.66x = 413,979.21 × 187,438.38 - Step 4: Simplify right side
276,177.66x = 77,595,592,476.08 - Step 5: Solve for x
x = 77,595,592,476.08/276,177.66 - Step 6: Final answer
x = 280,962.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.