Finding the Fourth Proportional to 304,706.18, 420,455.12 and 170,570.18
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Solution
The fourth proportional to 304,706.18, 420,455.12 and 170,570.18 is: 235,364.79
Step by Step Solution
- Step 1: Write the proportion equation
304,706.18 : 420,455.12 = 170,570.18 : x - Step 2: Convert to fraction form
304,706.18/420,455.12 = 170,570.18/x - Step 3: Cross multiply
304,706.18x = 420,455.12 × 170,570.18 - Step 4: Simplify right side
304,706.18x = 71,717,105,500.32 - Step 5: Solve for x
x = 71,717,105,500.32/304,706.18 - Step 6: Final answer
x = 235,364.79
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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.