Finding the Fourth Proportional to 212,197.80, 318,317.48 and 77,298.52
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Solution
The fourth proportional to 212,197.80, 318,317.48 and 77,298.52 is: 115,955.35
Step by Step Solution
- Step 1: Write the proportion equation
212,197.80 : 318,317.48 = 77,298.52 : x - Step 2: Convert to fraction form
212,197.80/318,317.48 = 77,298.52/x - Step 3: Cross multiply
212,197.80x = 318,317.48 × 77,298.52 - Step 4: Simplify right side
212,197.80x = 24,605,470,094.13 - Step 5: Solve for x
x = 24,605,470,094.13/212,197.80 - Step 6: Final answer
x = 115,955.35
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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.