Finding the Fourth Proportional to 318,991.64, 478,556.10 and 159,153.53
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Solution
The fourth proportional to 318,991.64, 478,556.10 and 159,153.53 is: 238,764.54
Step by Step Solution
- Step 1: Write the proportion equation
318,991.64 : 478,556.10 = 159,153.53 : x - Step 2: Convert to fraction form
318,991.64/478,556.10 = 159,153.53/x - Step 3: Cross multiply
318,991.64x = 478,556.10 × 159,153.53 - Step 4: Simplify right side
318,991.64x = 76,163,890,225.25 - Step 5: Solve for x
x = 76,163,890,225.25/318,991.64 - Step 6: Final answer
x = 238,764.54
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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.