Finding the Fourth Proportional to 210,576.74, 290,609.94 and 118,718.70
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Solution
The fourth proportional to 210,576.74, 290,609.94 and 118,718.70 is: 163,839.72
Step by Step Solution
- Step 1: Write the proportion equation
210,576.74 : 290,609.94 = 118,718.70 : x - Step 2: Convert to fraction form
210,576.74/290,609.94 = 118,718.70/x - Step 3: Cross multiply
210,576.74x = 290,609.94 × 118,718.70 - Step 4: Simplify right side
210,576.74x = 34,500,834,283.88 - Step 5: Solve for x
x = 34,500,834,283.88/210,576.74 - Step 6: Final answer
x = 163,839.72
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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.