Finding the Fourth Proportional to 258,265.49, 356,389.12 and 143,536.68
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Solution
The fourth proportional to 258,265.49, 356,389.12 and 143,536.68 is: 198,071.03
Step by Step Solution
- Step 1: Write the proportion equation
258,265.49 : 356,389.12 = 143,536.68 : x - Step 2: Convert to fraction form
258,265.49/356,389.12 = 143,536.68/x - Step 3: Cross multiply
258,265.49x = 356,389.12 × 143,536.68 - Step 4: Simplify right side
258,265.49x = 51,154,911,447.29 - Step 5: Solve for x
x = 51,154,911,447.29/258,265.49 - Step 6: Final answer
x = 198,071.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.