Finding the Fourth Proportional to 193,641.60, 290,374.92 and 68,985.84
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Solution
The fourth proportional to 193,641.60, 290,374.92 and 68,985.84 is: 103,447.59
Step by Step Solution
- Step 1: Write the proportion equation
193,641.60 : 290,374.92 = 68,985.84 : x - Step 2: Convert to fraction form
193,641.60/290,374.92 = 68,985.84/x - Step 3: Cross multiply
193,641.60x = 290,374.92 × 68,985.84 - Step 4: Simplify right side
193,641.60x = 20,031,757,771.13 - Step 5: Solve for x
x = 20,031,757,771.13/193,641.60 - Step 6: Final answer
x = 103,447.59
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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.