Finding the Fourth Proportional to 424,206.36, 636,770.62 and 171,660.70
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Solution
The fourth proportional to 424,206.36, 636,770.62 and 171,660.70 is: 257,677.63
Step by Step Solution
- Step 1: Write the proportion equation
424,206.36 : 636,770.62 = 171,660.70 : x - Step 2: Convert to fraction form
424,206.36/636,770.62 = 171,660.70/x - Step 3: Cross multiply
424,206.36x = 636,770.62 × 171,660.70 - Step 4: Simplify right side
424,206.36x = 109,308,490,368.63 - Step 5: Solve for x
x = 109,308,490,368.63/424,206.36 - Step 6: Final answer
x = 257,677.63
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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.