Finding the Fourth Proportional to 420,248.58, 580,047.66 and 259,235.70
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Solution
The fourth proportional to 420,248.58, 580,047.66 and 259,235.70 is: 357,809.80
Step by Step Solution
- Step 1: Write the proportion equation
420,248.58 : 580,047.66 = 259,235.70 : x - Step 2: Convert to fraction form
420,248.58/580,047.66 = 259,235.70/x - Step 3: Cross multiply
420,248.58x = 580,047.66 × 259,235.70 - Step 4: Simplify right side
420,248.58x = 150,369,061,173.46 - Step 5: Solve for x
x = 150,369,061,173.46/420,248.58 - Step 6: Final answer
x = 357,809.80
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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.