Finding the Fourth Proportional to 230,657.54, 318,307.54 and 128,682.99
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Solution
The fourth proportional to 230,657.54, 318,307.54 and 128,682.99 is: 177,582.60
Step by Step Solution
- Step 1: Write the proportion equation
230,657.54 : 318,307.54 = 128,682.99 : x - Step 2: Convert to fraction form
230,657.54/318,307.54 = 128,682.99/x - Step 3: Cross multiply
230,657.54x = 318,307.54 × 128,682.99 - Step 4: Simplify right side
230,657.54x = 40,960,765,906.32 - Step 5: Solve for x
x = 40,960,765,906.32/230,657.54 - Step 6: Final answer
x = 177,582.60
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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.