Finding the Fourth Proportional to 288,982.42, 433,288.99 and 138,924.12
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Solution
The fourth proportional to 288,982.42, 433,288.99 and 138,924.12 is: 208,297.42
Step by Step Solution
- Step 1: Write the proportion equation
288,982.42 : 433,288.99 = 138,924.12 : x - Step 2: Convert to fraction form
288,982.42/433,288.99 = 138,924.12/x - Step 3: Cross multiply
288,982.42x = 433,288.99 × 138,924.12 - Step 4: Simplify right side
288,982.42x = 60,194,291,641.44 - Step 5: Solve for x
x = 60,194,291,641.44/288,982.42 - Step 6: Final answer
x = 208,297.42
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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.