Finding the Fourth Proportional to 354,600.75, 489,282.21 and 211,374.12
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Solution
The fourth proportional to 354,600.75, 489,282.21 and 211,374.12 is: 291,656.45
Step by Step Solution
- Step 1: Write the proportion equation
354,600.75 : 489,282.21 = 211,374.12 : x - Step 2: Convert to fraction form
354,600.75/489,282.21 = 211,374.12/x - Step 3: Cross multiply
354,600.75x = 489,282.21 × 211,374.12 - Step 4: Simplify right side
354,600.75x = 103,421,596,570.41 - Step 5: Solve for x
x = 103,421,596,570.41/354,600.75 - Step 6: Final answer
x = 291,656.45
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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.