Finding the Fourth Proportional to 420,695.63, 631,043.44 and 125,207.63
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Solution
The fourth proportional to 420,695.63, 631,043.44 and 125,207.63 is: 187,811.44
Step by Step Solution
- Step 1: Write the proportion equation
420,695.63 : 631,043.44 = 125,207.63 : x - Step 2: Convert to fraction form
420,695.63/631,043.44 = 125,207.63/x - Step 3: Cross multiply
420,695.63x = 631,043.44 × 125,207.63 - Step 4: Simplify right side
420,695.63x = 79,011,450,081.21 - Step 5: Solve for x
x = 79,011,450,081.21/420,695.63 - Step 6: Final answer
x = 187,811.44
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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.