Finding the Fourth Proportional to 180,842.24, 249,588.12 and 100,287.68
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Solution
The fourth proportional to 180,842.24, 249,588.12 and 100,287.68 is: 138,411.32
Step by Step Solution
- Step 1: Write the proportion equation
180,842.24 : 249,588.12 = 100,287.68 : x - Step 2: Convert to fraction form
180,842.24/249,588.12 = 100,287.68/x - Step 3: Cross multiply
180,842.24x = 249,588.12 × 100,287.68 - Step 4: Simplify right side
180,842.24x = 25,030,613,510.36 - Step 5: Solve for x
x = 25,030,613,510.36/180,842.24 - Step 6: Final answer
x = 138,411.32
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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.