Finding the Fourth Proportional to 420,400.44, 580,164.84 and 229,426.14
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Solution
The fourth proportional to 420,400.44, 580,164.84 and 229,426.14 is: 316,614.75
Step by Step Solution
- Step 1: Write the proportion equation
420,400.44 : 580,164.84 = 229,426.14 : x - Step 2: Convert to fraction form
420,400.44/580,164.84 = 229,426.14/x - Step 3: Cross multiply
420,400.44x = 580,164.84 × 229,426.14 - Step 4: Simplify right side
420,400.44x = 133,104,979,804.92 - Step 5: Solve for x
x = 133,104,979,804.92/420,400.44 - Step 6: Final answer
x = 316,614.75
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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.