Finding the Fourth Proportional to 292,365.40, 438,548.10 and 142,701.70
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Solution
The fourth proportional to 292,365.40, 438,548.10 and 142,701.70 is: 214,052.55
Step by Step Solution
- Step 1: Write the proportion equation
292,365.40 : 438,548.10 = 142,701.70 : x - Step 2: Convert to fraction form
292,365.40/438,548.10 = 142,701.70/x - Step 3: Cross multiply
292,365.40x = 438,548.10 × 142,701.70 - Step 4: Simplify right side
292,365.40x = 62,581,559,401.77 - Step 5: Solve for x
x = 62,581,559,401.77/292,365.40 - Step 6: Final answer
x = 214,052.55
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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.