Finding the Fourth Proportional to 276,598.48, 381,701.68 and 155,739.40
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Solution
The fourth proportional to 276,598.48, 381,701.68 and 155,739.40 is: 214,917.99
Step by Step Solution
- Step 1: Write the proportion equation
276,598.48 : 381,701.68 = 155,739.40 : x - Step 2: Convert to fraction form
276,598.48/381,701.68 = 155,739.40/x - Step 3: Cross multiply
276,598.48x = 381,701.68 × 155,739.40 - Step 4: Simplify right side
276,598.48x = 59,445,990,622.19 - Step 5: Solve for x
x = 59,445,990,622.19/276,598.48 - Step 6: Final answer
x = 214,917.99
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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.