Finding the Fourth Proportional to 402,752.74, 555,779.75 and 221,472.31
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Solution
The fourth proportional to 402,752.74, 555,779.75 and 221,472.31 is: 305,621.32
Step by Step Solution
- Step 1: Write the proportion equation
402,752.74 : 555,779.75 = 221,472.31 : x - Step 2: Convert to fraction form
402,752.74/555,779.75 = 221,472.31/x - Step 3: Cross multiply
402,752.74x = 555,779.75 × 221,472.31 - Step 4: Simplify right side
402,752.74x = 123,089,825,497.67 - Step 5: Solve for x
x = 123,089,825,497.67/402,752.74 - Step 6: Final answer
x = 305,621.32
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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.