Finding the Fourth Proportional to 251,202.90, 377,679.15 and 212,711.70
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Solution
The fourth proportional to 251,202.90, 377,679.15 and 212,711.70 is: 319,808.31
Step by Step Solution
- Step 1: Write the proportion equation
251,202.90 : 377,679.15 = 212,711.70 : x - Step 2: Convert to fraction form
251,202.90/377,679.15 = 212,711.70/x - Step 3: Cross multiply
251,202.90x = 377,679.15 × 212,711.70 - Step 4: Simplify right side
251,202.90x = 80,336,774,051.06 - Step 5: Solve for x
x = 80,336,774,051.06/251,202.90 - Step 6: Final answer
x = 319,808.31
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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.