Finding the Fourth Proportional to 252,113.76, 347,924.28 and 138,943.80
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Solution
The fourth proportional to 252,113.76, 347,924.28 and 138,943.80 is: 191,746.46
Step by Step Solution
- Step 1: Write the proportion equation
252,113.76 : 347,924.28 = 138,943.80 : x - Step 2: Convert to fraction form
252,113.76/347,924.28 = 138,943.80/x - Step 3: Cross multiply
252,113.76x = 347,924.28 × 138,943.80 - Step 4: Simplify right side
252,113.76x = 48,341,921,575.46 - Step 5: Solve for x
x = 48,341,921,575.46/252,113.76 - Step 6: Final answer
x = 191,746.46
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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.