Finding the Fourth Proportional to 358,862.20, 538,730.70 and 181,277.80
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Solution
The fourth proportional to 358,862.20, 538,730.70 and 181,277.80 is: 272,137.65
Step by Step Solution
- Step 1: Write the proportion equation
358,862.20 : 538,730.70 = 181,277.80 : x - Step 2: Convert to fraction form
358,862.20/538,730.70 = 181,277.80/x - Step 3: Cross multiply
358,862.20x = 538,730.70 × 181,277.80 - Step 4: Simplify right side
358,862.20x = 97,659,916,088.46 - Step 5: Solve for x
x = 97,659,916,088.46/358,862.20 - Step 6: Final answer
x = 272,137.65
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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.