Finding the Fourth Proportional to 152,138.58, 228,207.90 and 57,343.08
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Solution
The fourth proportional to 152,138.58, 228,207.90 and 57,343.08 is: 86,014.63
Step by Step Solution
- Step 1: Write the proportion equation
152,138.58 : 228,207.90 = 57,343.08 : x - Step 2: Convert to fraction form
152,138.58/228,207.90 = 57,343.08/x - Step 3: Cross multiply
152,138.58x = 228,207.90 × 57,343.08 - Step 4: Simplify right side
152,138.58x = 13,086,143,866.33 - Step 5: Solve for x
x = 13,086,143,866.33/152,138.58 - Step 6: Final answer
x = 86,014.63
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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.