Finding the Fourth Proportional to 212,018.98, 318,028.54 and 77,057.99
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Solution
The fourth proportional to 212,018.98, 318,028.54 and 77,057.99 is: 115,587.01
Step by Step Solution
- Step 1: Write the proportion equation
212,018.98 : 318,028.54 = 77,057.99 : x - Step 2: Convert to fraction form
212,018.98/318,028.54 = 77,057.99/x - Step 3: Cross multiply
212,018.98x = 318,028.54 × 77,057.99 - Step 4: Simplify right side
212,018.98x = 24,506,639,669.74 - Step 5: Solve for x
x = 24,506,639,669.74/212,018.98 - Step 6: Final answer
x = 115,587.01
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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.