Finding the Fourth Proportional to 204,053.14, 306,031.11 and 85,726.78
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Solution
The fourth proportional to 204,053.14, 306,031.11 and 85,726.78 is: 128,569.75
Step by Step Solution
- Step 1: Write the proportion equation
204,053.14 : 306,031.11 = 85,726.78 : x - Step 2: Convert to fraction form
204,053.14/306,031.11 = 85,726.78/x - Step 3: Cross multiply
204,053.14x = 306,031.11 × 85,726.78 - Step 4: Simplify right side
204,053.14x = 26,235,061,640.13 - Step 5: Solve for x
x = 26,235,061,640.13/204,053.14 - Step 6: Final answer
x = 128,569.75
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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.