Finding the Fourth Proportional to 354,740.42, 489,553.16 and 201,774.66
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Solution
The fourth proportional to 354,740.42, 489,553.16 and 201,774.66 is: 278,455.50
Step by Step Solution
- Step 1: Write the proportion equation
354,740.42 : 489,553.16 = 201,774.66 : x - Step 2: Convert to fraction form
354,740.42/489,553.16 = 201,774.66/x - Step 3: Cross multiply
354,740.42x = 489,553.16 × 201,774.66 - Step 4: Simplify right side
354,740.42x = 98,779,421,402.05 - Step 5: Solve for x
x = 98,779,421,402.05/354,740.42 - Step 6: Final answer
x = 278,455.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.