Finding the Fourth Proportional to 292,511.20, 438,766.80 and 239,367.10
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Solution
The fourth proportional to 292,511.20, 438,766.80 and 239,367.10 is: 359,050.65
Step by Step Solution
- Step 1: Write the proportion equation
292,511.20 : 438,766.80 = 239,367.10 : x - Step 2: Convert to fraction form
292,511.20/438,766.80 = 239,367.10/x - Step 3: Cross multiply
292,511.20x = 438,766.80 × 239,367.10 - Step 4: Simplify right side
292,511.20x = 105,026,336,492.28 - Step 5: Solve for x
x = 105,026,336,492.28/292,511.20 - Step 6: Final answer
x = 359,050.65
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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.