Finding the Fourth Proportional to 292,285.80, 438,428.70 and 105,229.80
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Solution
The fourth proportional to 292,285.80, 438,428.70 and 105,229.80 is: 157,844.70
Step by Step Solution
- Step 1: Write the proportion equation
292,285.80 : 438,428.70 = 105,229.80 : x - Step 2: Convert to fraction form
292,285.80/438,428.70 = 105,229.80/x - Step 3: Cross multiply
292,285.80x = 438,428.70 × 105,229.80 - Step 4: Simplify right side
292,285.80x = 46,135,764,415.26 - Step 5: Solve for x
x = 46,135,764,415.26/292,285.80 - Step 6: Final answer
x = 157,844.70
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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.