Finding the Fourth Proportional to 247,862.06, 342,021.88 and 140,409.08
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Solution
The fourth proportional to 247,862.06, 342,021.88 and 140,409.08 is: 193,748.80
Step by Step Solution
- Step 1: Write the proportion equation
247,862.06 : 342,021.88 = 140,409.08 : x - Step 2: Convert to fraction form
247,862.06/342,021.88 = 140,409.08/x - Step 3: Cross multiply
247,862.06x = 342,021.88 × 140,409.08 - Step 4: Simplify right side
247,862.06x = 48,022,977,510.67 - Step 5: Solve for x
x = 48,022,977,510.67/247,862.06 - Step 6: Final answer
x = 193,748.80
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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.