Finding the Fourth Proportional to 228,225.78, 342,338.40 and 87,885.99
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Solution
The fourth proportional to 228,225.78, 342,338.40 and 87,885.99 is: 131,828.88
Step by Step Solution
- Step 1: Write the proportion equation
228,225.78 : 342,338.40 = 87,885.99 : x - Step 2: Convert to fraction form
228,225.78/342,338.40 = 87,885.99/x - Step 3: Cross multiply
228,225.78x = 342,338.40 × 87,885.99 - Step 4: Simplify right side
228,225.78x = 30,086,749,199.02 - Step 5: Solve for x
x = 30,086,749,199.02/228,225.78 - Step 6: Final answer
x = 131,828.88
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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.