Finding the Fourth Proportional to 210,012.99, 314,920.97 and 76,800.10
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Solution
The fourth proportional to 210,012.99, 314,920.97 and 76,800.10 is: 115,164.12
Step by Step Solution
- Step 1: Write the proportion equation
210,012.99 : 314,920.97 = 76,800.10 : x - Step 2: Convert to fraction form
210,012.99/314,920.97 = 76,800.10/x - Step 3: Cross multiply
210,012.99x = 314,920.97 × 76,800.10 - Step 4: Simplify right side
210,012.99x = 24,185,961,988.10 - Step 5: Solve for x
x = 24,185,961,988.10/210,012.99 - Step 6: Final answer
x = 115,164.12
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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.