Finding the Fourth Proportional to 253,228.55, 349,562.99 and 157,782.40
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Solution
The fourth proportional to 253,228.55, 349,562.99 and 157,782.40 is: 217,806.75
Step by Step Solution
- Step 1: Write the proportion equation
253,228.55 : 349,562.99 = 157,782.40 : x - Step 2: Convert to fraction form
253,228.55/349,562.99 = 157,782.40/x - Step 3: Cross multiply
253,228.55x = 349,562.99 × 157,782.40 - Step 4: Simplify right side
253,228.55x = 55,154,887,033.92 - Step 5: Solve for x
x = 55,154,887,033.92/253,228.55 - Step 6: Final answer
x = 217,806.75
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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.