Finding the Fourth Proportional to 485,240.08, 728,085.58 and 185,621.62
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Solution
The fourth proportional to 485,240.08, 728,085.58 and 185,621.62 is: 278,518.68
Step by Step Solution
- Step 1: Write the proportion equation
485,240.08 : 728,085.58 = 185,621.62 : x - Step 2: Convert to fraction form
485,240.08/728,085.58 = 185,621.62/x - Step 3: Cross multiply
485,240.08x = 728,085.58 × 185,621.62 - Step 4: Simplify right side
485,240.08x = 135,148,424,858.24 - Step 5: Solve for x
x = 135,148,424,858.24/485,240.08 - Step 6: Final answer
x = 278,518.68
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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.