Finding the Fourth Proportional to 258,292.99, 387,455.89 and 68,750.26
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Solution
The fourth proportional to 258,292.99, 387,455.89 and 68,750.26 is: 103,129.76
Step by Step Solution
- Step 1: Write the proportion equation
258,292.99 : 387,455.89 = 68,750.26 : x - Step 2: Convert to fraction form
258,292.99/387,455.89 = 68,750.26/x - Step 3: Cross multiply
258,292.99x = 387,455.89 × 68,750.26 - Step 4: Simplify right side
258,292.99x = 26,637,693,176.03 - Step 5: Solve for x
x = 26,637,693,176.03/258,292.99 - Step 6: Final answer
x = 103,129.76
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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.