Finding the Fourth Proportional to 340,719.12, 470,202.12 and 189,825.84
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Solution
The fourth proportional to 340,719.12, 470,202.12 and 189,825.84 is: 261,965.08
Step by Step Solution
- Step 1: Write the proportion equation
340,719.12 : 470,202.12 = 189,825.84 : x - Step 2: Convert to fraction form
340,719.12/470,202.12 = 189,825.84/x - Step 3: Cross multiply
340,719.12x = 470,202.12 × 189,825.84 - Step 4: Simplify right side
340,719.12x = 89,256,512,398.78 - Step 5: Solve for x
x = 89,256,512,398.78/340,719.12 - Step 6: Final answer
x = 261,965.08
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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.