Finding the Fourth Proportional to 398,349.44, 549,719.52 and 219,501.44
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Solution
The fourth proportional to 398,349.44, 549,719.52 and 219,501.44 is: 302,910.50
Step by Step Solution
- Step 1: Write the proportion equation
398,349.44 : 549,719.52 = 219,501.44 : x - Step 2: Convert to fraction form
398,349.44/549,719.52 = 219,501.44/x - Step 3: Cross multiply
398,349.44x = 549,719.52 × 219,501.44 - Step 4: Simplify right side
398,349.44x = 120,664,226,236.11 - Step 5: Solve for x
x = 120,664,226,236.11/398,349.44 - Step 6: Final answer
x = 302,910.50
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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.