Finding the Fourth Proportional to 282,701.46, 390,117.31 and 161,853.99
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Solution
The fourth proportional to 282,701.46, 390,117.31 and 161,853.99 is: 223,352.37
Step by Step Solution
- Step 1: Write the proportion equation
282,701.46 : 390,117.31 = 161,853.99 : x - Step 2: Convert to fraction form
282,701.46/390,117.31 = 161,853.99/x - Step 3: Cross multiply
282,701.46x = 390,117.31 × 161,853.99 - Step 4: Simplify right side
282,701.46x = 63,142,042,234.42 - Step 5: Solve for x
x = 63,142,042,234.42/282,701.46 - Step 6: Final answer
x = 223,352.37
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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.