Finding the Fourth Proportional to 457,243.22, 686,290.36 and 232,771.70
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Solution
The fourth proportional to 457,243.22, 686,290.36 and 232,771.70 is: 349,374.18
Step by Step Solution
- Step 1: Write the proportion equation
457,243.22 : 686,290.36 = 232,771.70 : x - Step 2: Convert to fraction form
457,243.22/686,290.36 = 232,771.70/x - Step 3: Cross multiply
457,243.22x = 686,290.36 × 232,771.70 - Step 4: Simplify right side
457,243.22x = 159,748,973,790.81 - Step 5: Solve for x
x = 159,748,973,790.81/457,243.22 - Step 6: Final answer
x = 349,374.18
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1.5x scale
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.