Finding the Fourth Proportional to 354,926.99, 489,809.96 and 201,987.12
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Solution
The fourth proportional to 354,926.99, 489,809.96 and 201,987.12 is: 278,748.32
Step by Step Solution
- Step 1: Write the proportion equation
354,926.99 : 489,809.96 = 201,987.12 : x - Step 2: Convert to fraction form
354,926.99/489,809.96 = 201,987.12/x - Step 3: Cross multiply
354,926.99x = 489,809.96 × 201,987.12 - Step 4: Simplify right side
354,926.99x = 98,935,302,157.78 - Step 5: Solve for x
x = 98,935,302,157.78/354,926.99 - Step 6: Final answer
x = 278,748.32
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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.