Finding the Fourth Proportional to 352,957.32, 529,431.42 and 86,719.08
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Solution
The fourth proportional to 352,957.32, 529,431.42 and 86,719.08 is: 130,077.50
Step by Step Solution
- Step 1: Write the proportion equation
352,957.32 : 529,431.42 = 86,719.08 : x - Step 2: Convert to fraction form
352,957.32/529,431.42 = 86,719.08/x - Step 3: Cross multiply
352,957.32x = 529,431.42 × 86,719.08 - Step 4: Simplify right side
352,957.32x = 45,911,805,665.49 - Step 5: Solve for x
x = 45,911,805,665.49/352,957.32 - Step 6: Final answer
x = 130,077.50
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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.