Finding the Fourth Proportional to 180,787.21, 249,482.36 and 100,214.03
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Solution
The fourth proportional to 180,787.21, 249,482.36 and 100,214.03 is: 138,293.16
Step by Step Solution
- Step 1: Write the proportion equation
180,787.21 : 249,482.36 = 100,214.03 : x - Step 2: Convert to fraction form
180,787.21/249,482.36 = 100,214.03/x - Step 3: Cross multiply
180,787.21x = 249,482.36 × 100,214.03 - Step 4: Simplify right side
180,787.21x = 25,001,633,583.75 - Step 5: Solve for x
x = 25,001,633,583.75/180,787.21 - Step 6: Final answer
x = 138,293.16
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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.