Finding the Fourth Proportional to 211,420.24, 316,508.28 and 141,125.20
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Solution
The fourth proportional to 211,420.24, 316,508.28 and 141,125.20 is: 211,272.56
Step by Step Solution
- Step 1: Write the proportion equation
211,420.24 : 316,508.28 = 141,125.20 : x - Step 2: Convert to fraction form
211,420.24/316,508.28 = 141,125.20/x - Step 3: Cross multiply
211,420.24x = 316,508.28 × 141,125.20 - Step 4: Simplify right side
211,420.24x = 44,667,294,316.66 - Step 5: Solve for x
x = 44,667,294,316.66/211,420.24 - Step 6: Final answer
x = 211,272.56
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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.