Finding the Fourth Proportional to 228,742.70, 319,617.70 and 228,742.70
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Solution
The fourth proportional to 228,742.70, 319,617.70 and 228,742.70 is: 319,617.70
Step by Step Solution
- Step 1: Write the proportion equation
228,742.70 : 319,617.70 = 228,742.70 : x - Step 2: Convert to fraction form
228,742.70/319,617.70 = 228,742.70/x - Step 3: Cross multiply
228,742.70x = 319,617.70 × 228,742.70 - Step 4: Simplify right side
228,742.70x = 73,110,215,665.79 - Step 5: Solve for x
x = 73,110,215,665.79/228,742.70 - Step 6: Final answer
x = 319,617.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.