Finding the Fourth Proportional to 661,722.88, 992,675.84 and 212,338.08
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Solution
The fourth proportional to 661,722.88, 992,675.84 and 212,338.08 is: 318,536.49
Step by Step Solution
- Step 1: Write the proportion equation
661,722.88 : 992,675.84 = 212,338.08 : x - Step 2: Convert to fraction form
661,722.88/992,675.84 = 212,338.08/x - Step 3: Cross multiply
661,722.88x = 992,675.84 × 212,338.08 - Step 4: Simplify right side
661,722.88x = 210,782,881,927.99 - Step 5: Solve for x
x = 210,782,881,927.99/661,722.88 - Step 6: Final answer
x = 318,536.49
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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.