Finding the Fourth Proportional to 398,533.72, 549,949.04 and 224,129.99
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Solution
The fourth proportional to 398,533.72, 549,949.04 and 224,129.99 is: 309,283.92
Step by Step Solution
- Step 1: Write the proportion equation
398,533.72 : 549,949.04 = 224,129.99 : x - Step 2: Convert to fraction form
398,533.72/549,949.04 = 224,129.99/x - Step 3: Cross multiply
398,533.72x = 549,949.04 × 224,129.99 - Step 4: Simplify right side
398,533.72x = 123,260,072,097.69 - Step 5: Solve for x
x = 123,260,072,097.69/398,533.72 - Step 6: Final answer
x = 309,283.92
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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.