Finding the Fourth Proportional to 511,747.62, 767,292.95 and 212,434.80
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Solution
The fourth proportional to 511,747.62, 767,292.95 and 212,434.80 is: 318,515.84
Step by Step Solution
- Step 1: Write the proportion equation
511,747.62 : 767,292.95 = 212,434.80 : x - Step 2: Convert to fraction form
511,747.62/767,292.95 = 212,434.80/x - Step 3: Cross multiply
511,747.62x = 767,292.95 × 212,434.80 - Step 4: Simplify right side
511,747.62x = 162,999,723,312.49 - Step 5: Solve for x
x = 162,999,723,312.49/511,747.62 - Step 6: Final answer
x = 318,515.84
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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.