Finding the Fourth Proportional to 258,624.84, 387,964.26 and 71,636.34
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Solution
The fourth proportional to 258,624.84, 387,964.26 and 71,636.34 is: 107,461.99
Step by Step Solution
- Step 1: Write the proportion equation
258,624.84 : 387,964.26 = 71,636.34 : x - Step 2: Convert to fraction form
258,624.84/387,964.26 = 71,636.34/x - Step 3: Cross multiply
258,624.84x = 387,964.26 × 71,636.34 - Step 4: Simplify right side
258,624.84x = 27,792,339,637.21 - Step 5: Solve for x
x = 27,792,339,637.21/258,624.84 - Step 6: Final answer
x = 107,461.99
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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.