Finding the Fourth Proportional to 292,749.98, 403,989.72 and 165,422.84
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Solution
The fourth proportional to 292,749.98, 403,989.72 and 165,422.84 is: 228,280.55
Step by Step Solution
- Step 1: Write the proportion equation
292,749.98 : 403,989.72 = 165,422.84 : x - Step 2: Convert to fraction form
292,749.98/403,989.72 = 165,422.84/x - Step 3: Cross multiply
292,749.98x = 403,989.72 × 165,422.84 - Step 4: Simplify right side
292,749.98x = 66,829,124,793.26 - Step 5: Solve for x
x = 66,829,124,793.26/292,749.98 - Step 6: Final answer
x = 228,280.55
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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.