Finding the Fourth Proportional to 180,921.29, 249,686.69 and 100,374.75
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Solution
The fourth proportional to 180,921.29, 249,686.69 and 100,374.75 is: 138,525.65
Step by Step Solution
- Step 1: Write the proportion equation
180,921.29 : 249,686.69 = 100,374.75 : x - Step 2: Convert to fraction form
180,921.29/249,686.69 = 100,374.75/x - Step 3: Cross multiply
180,921.29x = 249,686.69 × 100,374.75 - Step 4: Simplify right side
180,921.29x = 25,062,238,585.20 - Step 5: Solve for x
x = 25,062,238,585.20/180,921.29 - Step 6: Final answer
x = 138,525.65
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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.