Finding the Fourth Proportional to 561,216.87, 842,157.18 and 206,479.80
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Solution
The fourth proportional to 561,216.87, 842,157.18 and 206,479.80 is: 309,841.80
Step by Step Solution
- Step 1: Write the proportion equation
561,216.87 : 842,157.18 = 206,479.80 : x - Step 2: Convert to fraction form
561,216.87/842,157.18 = 206,479.80/x - Step 3: Cross multiply
561,216.87x = 842,157.18 × 206,479.80 - Step 4: Simplify right side
561,216.87x = 173,888,446,094.96 - Step 5: Solve for x
x = 173,888,446,094.96/561,216.87 - Step 6: Final answer
x = 309,841.80
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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.