Finding the Fourth Proportional to 249,832.60, 374,619.30 and 91,979.80
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Solution
The fourth proportional to 249,832.60, 374,619.30 and 91,979.80 is: 137,921.99
Step by Step Solution
- Step 1: Write the proportion equation
249,832.60 : 374,619.30 = 91,979.80 : x - Step 2: Convert to fraction form
249,832.60/374,619.30 = 91,979.80/x - Step 3: Cross multiply
249,832.60x = 374,619.30 × 91,979.80 - Step 4: Simplify right side
249,832.60x = 34,457,408,290.14 - Step 5: Solve for x
x = 34,457,408,290.14/249,832.60 - Step 6: Final answer
x = 137,921.99
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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.