Finding the Fourth Proportional to 261,197.84, 391,801.08 and 74,202.32
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Solution
The fourth proportional to 261,197.84, 391,801.08 and 74,202.32 is: 111,304.71
Step by Step Solution
- Step 1: Write the proportion equation
261,197.84 : 391,801.08 = 74,202.32 : x - Step 2: Convert to fraction form
261,197.84/391,801.08 = 74,202.32/x - Step 3: Cross multiply
261,197.84x = 391,801.08 × 74,202.32 - Step 4: Simplify right side
261,197.84x = 29,072,549,114.51 - Step 5: Solve for x
x = 29,072,549,114.51/261,197.84 - Step 6: Final answer
x = 111,304.71
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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.