Finding the Fourth Proportional to 445,450.19, 668,273.57 and 129,931.79
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Solution
The fourth proportional to 445,450.19, 668,273.57 and 129,931.79 is: 194,926.35
Step by Step Solution
- Step 1: Write the proportion equation
445,450.19 : 668,273.57 = 129,931.79 : x - Step 2: Convert to fraction form
445,450.19/668,273.57 = 129,931.79/x - Step 3: Cross multiply
445,450.19x = 668,273.57 × 129,931.79 - Step 4: Simplify right side
445,450.19x = 86,829,980,510.13 - Step 5: Solve for x
x = 86,829,980,510.13/445,450.19 - Step 6: Final answer
x = 194,926.35
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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.