Finding the Fourth Proportional to 292,367.40, 438,551.10 and 142,703.70
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Solution
The fourth proportional to 292,367.40, 438,551.10 and 142,703.70 is: 214,055.55
Step by Step Solution
- Step 1: Write the proportion equation
292,367.40 : 438,551.10 = 142,703.70 : x - Step 2: Convert to fraction form
292,367.40/438,551.10 = 142,703.70/x - Step 3: Cross multiply
292,367.40x = 438,551.10 × 142,703.70 - Step 4: Simplify right side
292,367.40x = 62,582,864,609.07 - Step 5: Solve for x
x = 62,582,864,609.07/292,367.40 - Step 6: Final answer
x = 214,055.55
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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.