Finding the Fourth Proportional to 311,725.02, 430,180.42 and 168,485.06
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Solution
The fourth proportional to 311,725.02, 430,180.42 and 168,485.06 is: 232,509.32
Step by Step Solution
- Step 1: Write the proportion equation
311,725.02 : 430,180.42 = 168,485.06 : x - Step 2: Convert to fraction form
311,725.02/430,180.42 = 168,485.06/x - Step 3: Cross multiply
311,725.02x = 430,180.42 × 168,485.06 - Step 4: Simplify right side
311,725.02x = 72,478,973,874.53 - Step 5: Solve for x
x = 72,478,973,874.53/311,725.02 - Step 6: Final answer
x = 232,509.32
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1.5x scale
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.