Finding the Fourth Proportional to 361,786.86, 542,762.97 and 125,129.30
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Solution
The fourth proportional to 361,786.86, 542,762.97 and 125,129.30 is: 187,722.54
Step by Step Solution
- Step 1: Write the proportion equation
361,786.86 : 542,762.97 = 125,129.30 : x - Step 2: Convert to fraction form
361,786.86/542,762.97 = 125,129.30/x - Step 3: Cross multiply
361,786.86x = 542,762.97 × 125,129.30 - Step 4: Simplify right side
361,786.86x = 67,915,547,788.21 - Step 5: Solve for x
x = 67,915,547,788.21/361,786.86 - Step 6: Final answer
x = 187,722.54
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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.