Finding the Fourth Proportional to 180,765.84, 249,471.80 and 100,218.63
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Solution
The fourth proportional to 180,765.84, 249,471.80 and 100,218.63 is: 138,309.99
Step by Step Solution
- Step 1: Write the proportion equation
180,765.84 : 249,471.80 = 100,218.63 : x - Step 2: Convert to fraction form
180,765.84/249,471.80 = 100,218.63/x - Step 3: Cross multiply
180,765.84x = 249,471.80 × 100,218.63 - Step 4: Simplify right side
180,765.84x = 25,001,721,518.54 - Step 5: Solve for x
x = 25,001,721,518.54/180,765.84 - Step 6: Final answer
x = 138,309.99
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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.