Finding the Fourth Proportional to 286,771.80, 430,157.70 and 162,355.80
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Solution
The fourth proportional to 286,771.80, 430,157.70 and 162,355.80 is: 243,533.70
Step by Step Solution
- Step 1: Write the proportion equation
286,771.80 : 430,157.70 = 162,355.80 : x - Step 2: Convert to fraction form
286,771.80/430,157.70 = 162,355.80/x - Step 3: Cross multiply
286,771.80x = 430,157.70 × 162,355.80 - Step 4: Simplify right side
286,771.80x = 69,838,597,509.66 - Step 5: Solve for x
x = 69,838,597,509.66/286,771.80 - Step 6: Final answer
x = 243,533.70
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1.5x scale
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.