Finding the Fourth Proportional to 316,908.24, 437,320.84 and 189,507.92
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Solution
The fourth proportional to 316,908.24, 437,320.84 and 189,507.92 is: 261,513.44
Step by Step Solution
- Step 1: Write the proportion equation
316,908.24 : 437,320.84 = 189,507.92 : x - Step 2: Convert to fraction form
316,908.24/437,320.84 = 189,507.92/x - Step 3: Cross multiply
316,908.24x = 437,320.84 × 189,507.92 - Step 4: Simplify right side
316,908.24x = 82,875,762,761.05 - Step 5: Solve for x
x = 82,875,762,761.05/316,908.24 - Step 6: Final answer
x = 261,513.44
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1.5x scale
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.