Finding the Fourth Proportional to 406,965.98, 610,536.45 and 137,120.94
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Solution
The fourth proportional to 406,965.98, 610,536.45 and 137,120.94 is: 205,710.89
Step by Step Solution
- Step 1: Write the proportion equation
406,965.98 : 610,536.45 = 137,120.94 : x - Step 2: Convert to fraction form
406,965.98/610,536.45 = 137,120.94/x - Step 3: Cross multiply
406,965.98x = 610,536.45 × 137,120.94 - Step 4: Simplify right side
406,965.98x = 83,717,331,928.26 - Step 5: Solve for x
x = 83,717,331,928.26/406,965.98 - Step 6: Final answer
x = 205,710.89
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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.