Finding the Fourth Proportional to 306,888.78, 460,529.76 and 149,031.12
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Solution
The fourth proportional to 306,888.78, 460,529.76 and 149,031.12 is: 223,642.15
Step by Step Solution
- Step 1: Write the proportion equation
306,888.78 : 460,529.76 = 149,031.12 : x - Step 2: Convert to fraction form
306,888.78/460,529.76 = 149,031.12/x - Step 3: Cross multiply
306,888.78x = 460,529.76 × 149,031.12 - Step 4: Simplify right side
306,888.78x = 68,633,265,926.13 - Step 5: Solve for x
x = 68,633,265,926.13/306,888.78 - Step 6: Final answer
x = 223,642.15
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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.