Finding the Fourth Proportional to 180,974.58, 249,716.76 and 103,449.07
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Solution
The fourth proportional to 180,974.58, 249,716.76 and 103,449.07 is: 142,743.62
Step by Step Solution
- Step 1: Write the proportion equation
180,974.58 : 249,716.76 = 103,449.07 : x - Step 2: Convert to fraction form
180,974.58/249,716.76 = 103,449.07/x - Step 3: Cross multiply
180,974.58x = 249,716.76 × 103,449.07 - Step 4: Simplify right side
180,974.58x = 25,832,966,585.41 - Step 5: Solve for x
x = 25,832,966,585.41/180,974.58 - Step 6: Final answer
x = 142,743.62
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1.5x scale
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.