Finding the Fourth Proportional to 251,988.95, 378,038.17 and 117,135.80
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Solution
The fourth proportional to 251,988.95, 378,038.17 and 117,135.80 is: 175,729.15
Step by Step Solution
- Step 1: Write the proportion equation
251,988.95 : 378,038.17 = 117,135.80 : x - Step 2: Convert to fraction form
251,988.95/378,038.17 = 117,135.80/x - Step 3: Cross multiply
251,988.95x = 378,038.17 × 117,135.80 - Step 4: Simplify right side
251,988.95x = 44,281,803,473.49 - Step 5: Solve for x
x = 44,281,803,473.49/251,988.95 - Step 6: Final answer
x = 175,729.15
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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.