Finding the Fourth Proportional to 285,548.67, 393,952.91 and 170,830.62
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Solution
The fourth proportional to 285,548.67, 393,952.91 and 170,830.62 is: 235,683.88
Step by Step Solution
- Step 1: Write the proportion equation
285,548.67 : 393,952.91 = 170,830.62 : x - Step 2: Convert to fraction form
285,548.67/393,952.91 = 170,830.62/x - Step 3: Cross multiply
285,548.67x = 393,952.91 × 170,830.62 - Step 4: Simplify right side
285,548.67x = 67,299,219,011.95 - Step 5: Solve for x
x = 67,299,219,011.95/285,548.67 - Step 6: Final answer
x = 235,683.88
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1.5x scale
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.