Finding the Fourth Proportional to 258,618.90, 387,899.99 and 69,095.99
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Solution
The fourth proportional to 258,618.90, 387,899.99 and 69,095.99 is: 103,636.40
Step by Step Solution
- Step 1: Write the proportion equation
258,618.90 : 387,899.99 = 69,095.99 : x - Step 2: Convert to fraction form
258,618.90/387,899.99 = 69,095.99/x - Step 3: Cross multiply
258,618.90x = 387,899.99 × 69,095.99 - Step 4: Simplify right side
258,618.90x = 26,802,332,531.48 - Step 5: Solve for x
x = 26,802,332,531.48/258,618.90 - Step 6: Final answer
x = 103,636.40
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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.