Finding the Fourth Proportional to 268,378.68, 370,445.10 and 172,885.08
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Solution
The fourth proportional to 268,378.68, 370,445.10 and 172,885.08 is: 238,634.57
Step by Step Solution
- Step 1: Write the proportion equation
268,378.68 : 370,445.10 = 172,885.08 : x - Step 2: Convert to fraction form
268,378.68/370,445.10 = 172,885.08/x - Step 3: Cross multiply
268,378.68x = 370,445.10 × 172,885.08 - Step 4: Simplify right side
268,378.68x = 64,044,430,749.11 - Step 5: Solve for x
x = 64,044,430,749.11/268,378.68 - Step 6: Final answer
x = 238,634.57
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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.