Finding the Fourth Proportional to 155,295.48, 214,319.34 and 87,320.28
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Solution
The fourth proportional to 155,295.48, 214,319.34 and 87,320.28 is: 120,508.50
Step by Step Solution
- Step 1: Write the proportion equation
155,295.48 : 214,319.34 = 87,320.28 : x - Step 2: Convert to fraction form
155,295.48/214,319.34 = 87,320.28/x - Step 3: Cross multiply
155,295.48x = 214,319.34 × 87,320.28 - Step 4: Simplify right side
155,295.48x = 18,714,424,778.22 - Step 5: Solve for x
x = 18,714,424,778.22/155,295.48 - Step 6: Final answer
x = 120,508.50
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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.