Finding the Fourth Proportional to 402,752.87, 555,779.93 and 221,472.44
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Solution
The fourth proportional to 402,752.87, 555,779.93 and 221,472.44 is: 305,621.50
Step by Step Solution
- Step 1: Write the proportion equation
402,752.87 : 555,779.93 = 221,472.44 : x - Step 2: Convert to fraction form
402,752.87/555,779.93 = 221,472.44/x - Step 3: Cross multiply
402,752.87x = 555,779.93 × 221,472.44 - Step 4: Simplify right side
402,752.87x = 123,089,933,590.71 - Step 5: Solve for x
x = 123,089,933,590.71/402,752.87 - Step 6: Final answer
x = 305,621.50
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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.