Finding the Fourth Proportional to 210,878.05, 316,284.57 and 68,722.96
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Solution
The fourth proportional to 210,878.05, 316,284.57 and 68,722.96 is: 103,073.85
Step by Step Solution
- Step 1: Write the proportion equation
210,878.05 : 316,284.57 = 68,722.96 : x - Step 2: Convert to fraction form
210,878.05/316,284.57 = 68,722.96/x - Step 3: Cross multiply
210,878.05x = 316,284.57 × 68,722.96 - Step 4: Simplify right side
210,878.05x = 21,736,011,852.73 - Step 5: Solve for x
x = 21,736,011,852.73/210,878.05 - Step 6: Final answer
x = 103,073.85
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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.