Finding the Fourth Proportional to 292,730.76, 403,963.20 and 165,403.62
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Solution
The fourth proportional to 292,730.76, 403,963.20 and 165,403.62 is: 228,254.03
Step by Step Solution
- Step 1: Write the proportion equation
292,730.76 : 403,963.20 = 165,403.62 : x - Step 2: Convert to fraction form
292,730.76/403,963.20 = 165,403.62/x - Step 3: Cross multiply
292,730.76x = 403,963.20 × 165,403.62 - Step 4: Simplify right side
292,730.76x = 66,816,975,626.78 - Step 5: Solve for x
x = 66,816,975,626.78/292,730.76 - Step 6: Final answer
x = 228,254.03
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1.5x scale
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.