Finding the Fourth Proportional to 211,177.68, 316,815.48 and 61,421.52
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Solution
The fourth proportional to 211,177.68, 316,815.48 and 61,421.52 is: 92,146.52
Step by Step Solution
- Step 1: Write the proportion equation
211,177.68 : 316,815.48 = 61,421.52 : x - Step 2: Convert to fraction form
211,177.68/316,815.48 = 61,421.52/x - Step 3: Cross multiply
211,177.68x = 316,815.48 × 61,421.52 - Step 4: Simplify right side
211,177.68x = 19,459,288,341.13 - Step 5: Solve for x
x = 19,459,288,341.13/211,177.68 - Step 6: Final answer
x = 92,146.52
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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.