Finding the Fourth Proportional to 242,658.48, 363,988.68 and 74,178.18
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Solution
The fourth proportional to 242,658.48, 363,988.68 and 74,178.18 is: 111,267.56
Step by Step Solution
- Step 1: Write the proportion equation
242,658.48 : 363,988.68 = 74,178.18 : x - Step 2: Convert to fraction form
242,658.48/363,988.68 = 74,178.18/x - Step 3: Cross multiply
242,658.48x = 363,988.68 × 74,178.18 - Step 4: Simplify right side
242,658.48x = 27,000,017,823.00 - Step 5: Solve for x
x = 27,000,017,823.00/242,658.48 - Step 6: Final answer
x = 111,267.56
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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.