Finding the Fourth Proportional to 259,940.40, 390,202.20 and 201,037.20
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Solution
The fourth proportional to 259,940.40, 390,202.20 and 201,037.20 is: 301,781.32
Step by Step Solution
- Step 1: Write the proportion equation
259,940.40 : 390,202.20 = 201,037.20 : x - Step 2: Convert to fraction form
259,940.40/390,202.20 = 201,037.20/x - Step 3: Cross multiply
259,940.40x = 390,202.20 × 201,037.20 - Step 4: Simplify right side
259,940.40x = 78,445,157,721.84 - Step 5: Solve for x
x = 78,445,157,721.84/259,940.40 - Step 6: Final answer
x = 301,781.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.